JAMB Biology Past Questions 2010 PDF

JAMB BIOLOGY Past Questions Years: 2010 2011 2012 2013 2014 2015 2016 2017 2018 This JAMB Past Questions and Answers is downloaded from Expobite.net The best exam portal ...

JAMB BIOLOGY Past Questions Years: 2010 2011 2012 2013 2014 2015 2016 2017 2018 This JAMB Past Questions and Answers is downloaded from Expobite.net The best exam portal  2010 JAMB BIOLOGY QUESTIONS PAPER TYPE: C B. it translates genetic information for the manufacture of 1. Which Biology Question Paper proteins Type is given to you? C. it stores and carries hereditary information A. Type A D. it is reservoir of energy for the B. Type B cell C. Type C D. Type D 4. The dominant phase in the life cycle of a fern is the? 2. Which of the following characterizes a mature plant cell? A. gametophyte B. prothallus A. the cytoplasm fills up the entire C. sporophyte cell space D. antheridium B. the nucleus is pushed to the centre of the cell 5. Parental care is exhibited by C. the cell wall is made up of cellulose A. toads D. the nucleus is small and B. snails irregular in shape C. earthworms D. birds 3. Which of the following is NOT a function of the nucleus of a cell? Use the diagram above to answer this question 6 and 7 A. it controls the life processes of the cell  A. algae B. monera C. fungi D. viruses Use the diagram below to answer this question 9 and 10. 6. With respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented? A. l,IV,II and lll 9. The main function of the B. IV, lll, ll and l feathers covering the part labelled C. l, ll, IV and lll I is to D. lll, ll, IV and l A. prevent ectoparasites from 7. Which of the animals attacking the animal represents the oldest creatures in B. generate heat to keep the terms of evolutionary history? animal warm C. provide some power for flight A. III D. serve as insulator to maintain B. II body heat C. I D. IV 10. Based on the shape and structure of the beak and feet, the 8. Which of the following groups of bird represented is likely to feed cells is devoid of true nuclei mainly on A. flesh 12. The movement of material in B. fruits the xylem and phloem tissues of C. seeds the plant are represented by the D. nectar arrows labelled 11. Which of the following is true A. lll and IV respectively of the transverse section of a dicot B. ll and l respectively system? C. l and ll respectively D. l and lll respectively A. the epidermis is completely encircled by the cortex 13. During photosynthesis, the B. the xylem is more interiorly arrow labelled ll represents the located than the phloem C. the cambium lies between the A. escape of mineral salts cortex and the vascular bundles B. absorption of energy from the D. the vascular bundles are sun randomly scattered within the C. release of carbon (IV) oxide cortex D. release of oxygen as a by- product Use the diagram below to answer this question 12 and 13 14. Which of the following is lacking in the diet of a person with kwashiorkor? A. vitamins B. proteins C. carbohydrates 15. The mode of nutrition of sun D. left ventricle dew and bladder wort can be described as 18. Circulation of blood to all parts of the body except the lungs A. autotrophic is through B. saprophytic C. holozoic A. the pulmonary artery D. chemosynthetic B. systemic circulation C. the lymphatic system 16. When the mixture of a food D. pulmonary circulation substance and Benedict's solution was warmed, the solution 19. Yeast respires anaerobically to changed from blue to black-red. convert simple sugar to carbon This indicates the presence of (IV) oxide and A. reducing sugar A. alcohol B. fatty acid B. acid C. sucrose C. oxygen D. amino acid D. water 17. The primary structure 20. The sheet of muscle that responsible for pumping blood for separates the thoracic and the circulation through the abdominal cavities is the mammalian circulatory systems is the A. diaphragm B. intercostal muscle A. veins C. pleural membrane B. right auricle D. pericardium C. arteries 21. The oily substance that 24. In the male reproductive lubricates the mammalian hair to system of a mammal, sperm is keep it flexible and water repellent stored in the is secreted by the A. van deferens A. sweet glands B. urethra B. sebaceous glands C. epididymis C. fatty cells D. seminiferous tubules D. granular layer 25. Chemosynthetic organisms 22. The outer layer of the kidney are capable of manufacturing their where the Bowman's capsules are food from simple inorganic found is the substances through the process of A. cortex A. oxidation B. pelvis B. denitrification C. medulla C. reduction D. pyramid D. phosphorylation 23. Which of the following stimuli 26. The part of the human gut is likely to elicit a nastic response that has an acidic content is the in an organism? A. stomach A. Touch B. duodenum B. Light intensity C. ileum C. Chemical substances D. colon D. Gravity 27. I. Stomata → Spirogyro II. Alveoli → Earthworm III. Malpighian tubule → C. helping it to utilize atmospheric Mammal nitrogen IV. Contractile vacuole → D. serving as a growth regulator Protozoa. 30. The barrier between maternal Which of the above structures is and foetal blood is the correctly matched with the organisms in which it is found? A. placenta B. liver A. III C. umbilical chord B. II D. uterine wall C. I D. IV 31. The blood component that has the greatest affinity for oxygen is 28. A food chain always begins the with a A. lymphocytes A. consumer B. leucocytes B. decomposer C. erythrocytes C. producer D. thrombocytes D. primary consumer 32. Which of the following 29. Mycorrhizae promote plant organisms is mainly found in the growth by marine habitat? A. absorbing inorganic ions from A. Achatina the soil B. Tilapia B. protecting it from infection C. Dog fish D. Tortoise 33. The two halves of the pelvic A. tropical rainforest girdle are joined together at the B. desert C. montane forest A. public symphysis D. guinea savanna B. ilium C. pubis 36. The activity of an organism D. obturator foramen which affects the survival of another organism in the same 34. I. Adoption of appropriate habitat constitutes nocturnal habits II. Burrowing A. an edaphic factor III. Adjusting their internal body B. an abiotic factor temperature. C. a biotic factor IV. Possession of many sweat D. a physiographic factor pores. 37. The average number of Which of the above are ways in individuals of species per unit area which desert animals adapt to of the habitat is the extreme heat of the environment? A. population density A. I and IV only B. population frequency B. II and III only C. population size C. I and II only D. population distribution D. I, II and III only 38. The vector for yellow fever is 35. Low annual rainfall, sparse vegetation, high diurnal A. Aedes mosquito temperatures and cold nights are B. Anopheles mosquito characteristic features of the C. tsetse fly D. blackfly Use the diagram below to answer questions 42 and 43 39. The loss of soil through erosion can be reduced by A. watering B. crop rotation C. manuring 42. In which plantation are all the D. irrigation trees between the height of 2- 4m? 40. The protozoan plasmodium A. III falciparum is transmitted by B. II C. I A. female Anopheles mosquitoes D. IV B. female Aedes mosquitoes C. female Culex mosquitoes 43. Which of the following is a D. Female blackfly true feature of plantation ll? 41. A dilute solution of A. it has the highest number of phenylthiocarbamide tastes bitter trees of about 2m high. to some people and is tasteless to B. it has highest number of trees others. This is an example of C. it has the highest number of tall trees A. taste bud variation D. the height of all its trees range B. discontinuous variation between 2m and 6m C. morphological variation D. continuous variation 44. Thyroxine and adrenalin are 47. If both parents are examples of hormones which heterozygous for a trait, the control probability that an offspring will be recessive for that trait is A. blood grouping B. tongue rolling A. 3⁄4 C. behavioural patterns B. 1⁄2 D. colour variation C. 1⁄4 D. 1 45. A pair of genes that control a trait is referred to as 48. At what stage in the life history of a mammal is the sex of A. an allele an individual set? B. recessive C. dominant A. at adolescence D. a hybrid B. at puberty C. at birth 46. The chromosome number of a D. at conception cell before and after the process of meiosis is conventionally 49. The main distinguishing represented as features between the soldier termite and other members of the A. 2n → 2n caste are the B. n → n C. n → 2n A. presence of wings, possession D. 2n → n of a small head and large thorax B. presence of wings, possession of a large thorax and a small head C. absence of wings, possession of strong mandibles and a large head D. absence of wings, possession of big head and the absence of mandible 50. The flippers of a whale and the fins of a fish are examples of A. divergent evolution B. coevolution C. continuous variation D. convergent evolution ANSWER KEYS 1. C 2. C 3. D 4. C 5. D 6. B 7. D 8. D 9. D 10. A 11. B 12. A 13. D 14. B 15. C 16. A 17. C 18. B 19. A 20. A 21. B 22. A 23. C 24. C 25. D 26. A 27. D 28. C 29. A 30. A 31. C 32. C 33. A 34. C 35. D 36. A 37. C 38. B 39. A 40. A 41. B 42. A 43. A 44. C 45. A 46. D 47. C 48. B 49. C 50. A  2011 JAMB BIOLOGY QUESTIONS PAPER TYPE: C C. Spirogyra sp. D. Tilapia sp. 1. Which Question Paper Type of Biology is given to you? 4. Seed plants are divided into A. Type A A. tracheophytes and ferns B. Type B B. angiosperms and C. Type C gymnosperms D. Type D C. monocotyledons and dicotyledons 2. The function of the red head in D. thallophytes and bryophytes male Agama lizards is to 5. In which of the following groups A. conceal and camouflage the of vertebrates is parental care animal from predators mostly exhibited? B. scare other males from the territory A. Reptilia C. attract female lizards for B. Amphibia mating purposes C. Aves D. warm predators of the D. Mammalia distastefulness of the animal Use the Diagrams below to 3. In which of the following species answer questions 6 to 8 is the biomass of an individual the smallest? A. Agama sp. B. Bufo sp. 6. Which of the organisms 9. The adaptive importance of represented are notable nuptial flight from termite colonies agricultural pests? is to A. II and IV A. disperse the reproductives in B. I and IV order to establish new colonies C. II and III B. provide abundant food for birds D. I and III and other animals during the early rains 7. An economic importance of the C. ensure cross-breeding between organism represented by IV is that members of one colony and another A. it transmits water borne D. expel the reproductives so as to disease to humans provide enough food for other B. it is destructive to farm crops members C. its faeces pollutes drinking water Use the diagram below to D. it helps in the control of answer question 10 and 11 mosquito larvae 8. The adult form of iii is a vector of A. sleeping sickness B. river blindness 10. The gas evolved in the C. cholera process is D. elephantiasis A. carbon (IV) oxide B. nitrogen C. oxygen 14. The conversion of a nutrient D. carbon (II) oxide into a molecule in the body of a consumer is referred to as 11. The experimental set-up above is used to demonstrate the A. digestion process of B. assimilation C. absorption A. diffusion D. inhibition B. photosynthesis C. fermentation 15. The ability of living organism D. plasmolysis to detect and respond to changes in the environment is referred to 12. Which of the following can as cause shrinkage of living cells? A. locomotion A. Hypotonic solution B. irritability B. Isotonic solution C. growth C. Deionized water D. taxis D. Hypertonic solution 16. In mammals, the exchange of 13. Which of the following is true nutrients and metabolic products of leucocytes? occurs in the A. they are respiratory pigments A. lungs B. they are most numerous and B. oesophagus ramify all cells C. trachea C. they are large and nucleated D. lymph D. they are involved in blood clotting 17. An example of an II. Test tube containing cane endospermous seed is sugar and diluted acid. III. Test tube containing cane A. maize gain sugar and its degrading B. cashew nut enzyme. C. cotton seed D. been seed 19. In which of the test tubes will glucose be detected after complete 18. I. Parasitism → Sundew. hydrolysis? II. Autotrophism →Amoeba. III. Saprophytism → Alga. A. I and II only IV Heterotrophism → Agama. B. II and III only C. I only Which of the above modes of D. I, II and III nutrition is correctly matched with the organism that exhibits it? 20. The enzyme involved in the hydrolysis is A. II B. III A. rennin C. II B. erepsin D. I C. sucrase D. maltase Use the following information to answer the questions 19 and 21. The part of the mammalian 20. ear responsible for the maintenance of balance is the I. Test tube containing cane sugar and water. A. cochlea B. pinna C. perilymph A. the movement of food and D. ossicles water B. suction pressure 22. The path followed by air as it C. transpiration pull passes through the lungs in D. the transport of gases and mammals is water A. trachea → bronchi → 25. Which of the following organs bronchioles → alveoli regulates the levels of water, salts, B. bronchi → trachea → alveoli → hydrogen ions and urea in the bronchioles mammalian blood? C. trachea → bronchioles →bronchi→ alveoli A. Liver D. bronchioles → alveoli → B. Kidney bronchi →trachea C. Bladder D. Colon 23. The movement response of a cockroach away from a light source 26. The sequence of the one-way can be described as gaseous exchange mechanism in a fish is A. positive phototaxism B. negative phototaxism A. operculum → gills → mouth C. negative phototropism B. gills → operculum → mouth D. positive phototropism C. mouth → operculum → gills D. mouth → gills → operculum 24. The vascular tissues in higher plants are responsible for 27. The type of asexual reproduction that is common to both Paramecium and protists is A. budding Weight of basin and roasted B. sporulation soil = 95.5g C. fragmentation D. fission The percentage of humus in the soil sample is 28. In nature, plants and animals are perpetually engaged in A. 16.7% mutualism because B. 17.6% C. 26.7% A. they are rivals D. 16.2% B. all animals rely on food produced by plants 30. An example of a filter -feeding C. they utilize respiratory wastes animal is of each other D. they are neighbours A. shark B. butterfly 29. In an experiment to C. whale determine the percentage of D. mosquito humus and water in a soil sample, the following results were 31. Which of the following is a obtained: feature of the population pyramid of a developing country? Weight of the evaporating basin alone = 80.5g A. long lifespan Weight of basin and soil = B. low birth rate 101.5g C. low death rate Weight after drying the soil in D. short lifespan the oven = 99.0g 32. The interaction of a A. liver of humans community of organisms with its B. reticuloendothelial cells of abiotic environment constitutes humans C. Malpighian tubules of mosquito A. niche D. brain of humans B. a food chain C. an ecosystem 36. Habitats are generally D. a microhabitat classified into 33. The vector of the malaria A. biotic and abiotic parasite is B. aquatic and terrestrial C. arboreal and marine biomes A. female Aedes mosquito D. microhabitats and B. female Anopheles mosquito macrohabitats C. male Culex mosquito D. female Culex mosquito 37. Dracunculiasis can be contacted through 34. Which of the following instruments is used to measure A. eating contaminated food relative humidity? B. drinking contaminated water C. bathing in contaminated water A. Hydrometer D. bites of blackfly B. Thermometer C. Hygrometer 38. Which of the following groups D. Anemometer of environmental factors are densitydependent? 35. Exo-erythrocytic phase of the life cycle of malaria parasite occurs A. Food, salinity, accumulation of in the metabolites and light B. Temperature, salinity predation A. recessive and disease B. sex-linked C. Food predation, disease and C. homozygous accumulation of metabolites D. dominant D. Temperature food disease and light 42. Lack of space in a population could lead to an increase in 39. Millet, sorghum, maize and onions are common crops growth A. water scarcity in Nigeria in the B. birth rate C. disease rate A. tropical rainforests D. drought B. Sudan savanna C. montane forests 43. If the cross of a red-flowered D. Sahel savanna plant with a white-flowered plant produces a pinkflowered plant, it is 40. In which of the following an example of biomes is the south western part of Nigeria located? A. codominance B. incomplete dominance A. Temperate forest C. mutation B. Tropical rainforest D. linkage C. Tropical woodland D. Desert 44. Which of the following theories was NOT considered by 41. The inheritable characters Darwin in his evolutionary theory? that are determined by a gene located on the Xchromosome is A. Variation B. Survival of the fittest C. Use and disuse D. similar antigens and antibodies D. Competition 48. The fallacy in Lamarck's 45. The crossing of individuals of evolutionary theory was the the same species with different assumption that genetic characters is A. traits are acquired through A. cross breeding disuse of body parts B. polygenic inheritance B. acquired traits are heritable C. non-disjunction C. acquired traits are seldom D. inbreeding formed D. traits are acquired through the 46. The number of alleles use of body parts controlling blood groups in humans 49. The bright coloured eye spots A. 3 on the wings of moth are an B. 4 example of C. 5 D. 2 A. warning colouration B. disruptive colouration 47. During blood transfusion, C. crypsis agglutination may occur as a result D. mimicry of the reaction between 50. The wings of a bat and those A. contrasting antigens and of a bird are examples of antibodies B. two different antigens A. convergent evolution C. two different antibodies B. continuous variation C. coevolution D. divergent evolution ANSWER KEYS 1. C 2. C 3. D 4. C 5. D 6. A 7. B 8. D 9. A 10. A 11. C 12. D 13. B 14. A 15. B 16. D 17. A 18. C 19. B 20. C 21. A 22. A 23. C 24. A 25. B 26. D 27. D 28. B 29. A 30. C 31. C 32. C 33. B 34. C 35. A 36. B 37. B 38. C 39. B 40. B 41. C 42. B 43. A 44. A 45. D 46. A 47. A 48. A 49. D 50. D  2012 JAMB BIOLOGY QUESTIONS PAPER TYPE: RED A. mitochondrion B. cell wall 1. Which Question Paper Type of C. endoplasmic reticulum Biology as indicated above is given D. nucleus to you? 4. Which of the following is most A. Type Green advanced in the evolutionary trend B. Type Purple of animals? C. Type Red D. Type Yellow A. Liver fluke B. Earthworm Use the diagram below to C. Snail answer question 2 and 3 D. Cockroach 5. Which of the following is the lowest category of classification? A. Class B. Species 2. The organelle responsible for C. Family heredity is labelled D. Genus A. l 6. Plants that show secondary B. ll growth are usually found among C. lll the D. I A. thallophytes 3. The part labelled IV is the B. pteridophytes C. monocotyledons 10. Which of the following D. dicotyledons possesses mammary gland? 7. The fungi are distinct group of A. Dogfish eukaryotes mainly because they B. whale have C. shark D. catfish A. spores B. no chlorophyll 11. The feature that links birds to C. many fruiting bodies reptiles in evolution is the D. sexual and sexual reproduction possession of 8. An arthropod that is destructive A. feathers at early stage of its life cycle is B. break C. skeleton A. butterfly D. scales B. mosquito C. bee 12. Countershading is an adaptive D. millipede feature that enables animals to 9. An animal body that can be cut A. fight enemies along its axis in any plane to give B. remain undetected two identical parts is said to be C. warn enemies D. attract mates A. radially symmetrical B. bilaterally symmetrical 13. Which of the following plant C. asymmetrical structures lacks a waterproof D. symmetrical cuticle? A. leaf B. Loran thus B. stem C. Rhizopus C. root D. Tapeworm D. shoot 17. A function of the hydrochloric 14. In the mammalian male acid produced in the human reproductive system, the part that stomach during digestion is to serves as a passage for both urine and semen is the A. neutralise the effect of bile B. coagulate milk protein and A. urethra emulsify fats B. ureter C. stop the action of ptyalin C. bladder D. break up food into smaller D. seminal vesicle particles 15. In plants which of the 18. Which of the following is a following is required in minute polysaccharide? quantities for growth? A. Glucose A. Copper B. Sucrose B. Potassium C. Maltose C. Phosphorus D. Cellulose D. Sodium Use the diagram below to 16. Which of the following answer this question 19 and organisms is both parasitic and 20. autotrophic? A. Sundew  B. Bowman's capsule C. loop of Henle D. renal tubule 22. Which of the following is involved in secondary thickening in plants? 19. Arrows represent directional movement materials. A. Collenchyma and xylem cells Transportation in the xylem is B. Vascular cambium represented by C. Vascular cambium and cork cambium A. I D. Cork cambium and B. II sclerenchyma C. III D. IV 23. An example of a fruit that develops from a single carpel is 20. The arrow labelled ll represents the A. okro B. tomato A. release of oxygen C. bean B. intake of carbon (IV) oxide D. orange C. movement of photosynthates D. movement of nutrients 24. The developing embryo is usually contained in the part 21. In the kidney of mammals, labelled the site of ultrafiltration is the A. IV A. uriniferous tubule B. III C. II 28. Plants of temperate origin can D. I be grown in tropical areas in the vegetation zones of the 25. The function of the part labelled lll is to A. rain forest B. Guinea savanna A. produce egg cells C. Sudan savanna B. protect sperms during D. montane forest fertilization C. secrete hormones during coitus 29. The water cycle is maintained D. protect the developing embryo mainly by 26. Plant growth can be artificially A. evaporation of water in the stimulated by the addition of environment B. evaporation and condensation A. gibberellin of water in the environment B. kinin C. condensation of water in the C. abscisic acid environment D. ethylene D. transpiration and respiration in plants 27. The autonomic nervous system consists of neurons that 30. Organisms living in an control the estuarine habitat are adapted to A. voluntary muscles A. withstand wide fluctuations in B. heart beat temperature C. tongue B. survive only in water with low D. hands salinity C. withstand wide fluctuations in B. ferns salinity C. lichen D. feed only on phytoplankton D. fungi and dead organic matter 34. The carrying capacity of a 31. The presence of stilt roots, habitat is reached when the pneumatophores, sunken stomata population growth begins to and salt glands are adaptive features of plants found in the A. increase slowly B. increase exponentially A. tropical rainforest C. slow down B. mangrove swamps D. remain steady C. grassland D. montane forest 35. The abiotic factors that control human population include 32. Which of the following animals can exist solely on the water they A. disease and famine get from food and metabolic B. space and rainfall reactions? C. flooding and earthquake D. temperature and disease A. forest arboreal dweller B. Desert dwellers 36. An indigenous method of C. forest-ground dweller renewing and maintaining soil D. rainforest dwellers fertility is by 33. The most likely first colonizers A. clearing farms by burning of a bare rock are B. planting one crop type C. adding inorganic fertilizers A. mosses yearly D. crop rotation and shifting 39. The largest number of cultivation cassava plants has an approximate height of 37. The diseases caused by water-borne pathogens include A. 1.4m B. 1.6m A. gonorrhoea and poliomyelitis C. 1.8m B. typhoid and syphilis D. 2.0m C. tuberculosis and cholera D. typhoid and cholera 40. Which of the following is true in blood transfusion? Use the diagram below to answer question 38 and 39. A. person of blood group AB can donate blood only to another person of blood group AB B. persons of blood groups A and B can donate or receive blood from each other C. A person of blood group AB can 38. The graph illustrates receive blood only from persons of blood group A or B A. the highest frequency for D. A person of blood group O can height of 2 metres donate only to a person of blood B. a discontinuously varying group O character C. a continuously varying 41. A yellow maize is planted and character all the fruits obtained are of yellow D. total yield in a cassava farm seeds. When they are cross-bred, yellow seeds and white seeds are obtained in a ratio D. adenine → adenine and 3:1. The yellow seed is said to be cytosine → cytosine A. non-heritable Use the diagram above to B. sex-linked answer this question 44 and 45 C. a recessive trait D. a dominant trait 42. When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind? 44. The type of interaction shown is referred to as A. 25% B. 50% A. interspecific competition C. 75% B. intraspecific competition D. 100% C. mutualism D. cooperation 43. The correct base pairing for DNA is 45. Which of the following statement is true of the A. adenine → thymine and interaction? guanine → cytosine B. adenine → guanine and A. P aurelia is better adapted for thymine → cytosine obtaining food than P caudatum C. adenine → cytosine and B. P caudatum is better adapted guanine → thymine for obtaining food than P. aurelia C. both organisms cannot coexist D. both organisms cannot C. search for a favourable place to reproduce breed D. ensure that every individual 46. The short thick break in birds gets a mate is an adaptation for 49. The use and disuse of body A. crushing seeds parts and the inheritance of B. sucking nectar acquired traits were used to C. tearing flash explain D. straining mud A. Darwin's theory 47. The basking of Agama lizards B. Lamarek's theory in the sun is to C. genetic drift D. gene flow A. change the colour of their body B. raise their body temperature to 50. From his study of Galapagos become active finches, Darwin derived his theory C. fight to defend their territories of evolution from D. attract the female for courtship A. comparative anatomy 48. The significance of a very B. comparative physiology large number of termites involved C. fossil remains in nuptial swarming is to D. comparative embryology A. provide birds with plenty of ANSWER KEYS food B. ensure their perpetuation 1. C 2. B 3. C 4. D 5. B 6. B 7. B despite predatory pressure 8. A 9. A 10. B 11. D 12. B 13. C 14. A 15. A 16. A 17. C 18. D 19. D 20. A 21. B 22. C 23. C 24. C 25. A 26. A 27. B 28. B 29. B 30. C 31. B 32. B 33. D 34. C 35. C 36. D 37. D 38. B 39. B 40. A 41. D 42. B 43. A 44. A 45. C 46. A 47. D 48. B 49. B 50. B  2013 JAMB BIOLOGY QUESTIONS PAPER TYPE: B 4. The organelles present in cells that are actively respiring and 1. Which Question Paper Type of photosynthesizing are Biology is given to you? A. lysosomes and ribosomes A. Type D B. Golgi apparatus and B. Type I endoplasmic reticulum C. Type B C. nucleus and centrioles D. Type U D. mitochondria and chloroplast 2. The process in which complex 5. Taenia solium can be found in substances are broken down into simpler ones is referred to as A. cow B. goat A. anabolism C. dog B. catabolism D. pig C. metabolism D. tropism 6. The structure labelled II is the 3. The organ which is sensitive to A. spermathecal pore light in Euglena is the B. cocoon C. clitellum A. gullet D. chaetae B. flagellum C. chloroplast 7. D. eyespot The organism is found in soils rich D. the abdomen of moth is fatter in than that of butterfly A. mud B. humus 10. Which of the following types of C. clay feathers is used for flight in birds? D. sand A. Quill 8. Which of the following B. Filo plume describes a characteristic of C. Covert arthropods? D. Down A. The organism finds it easy to 11. The plants that grow in grow freely deserts or very dry areas are B. the organism has a pair of referred to as jointed appendages C. the body is not divided into a A. mesophytes number of segments B. hydrophytes D. the body is covered by chitin C. epiphytes D. xerophytes 9. Which of the following distinguishes a butterfly from a 12. Which of the following is the moth? simplest living organism? A. the wings of butterfly rest A. Paramecium horizontally but those of moth rest B. Virus vertically C. Amoeba B. Both are active during the day D. Chlamydomonas C. they have similar antennae 13. Proboscis is a structure that is following organism use energy mostly found in from the sun? A. insects A. anabaena B. tapeworms B. sulphur bacteria C. amphibians C. Nitrosomonas sp. D. molluscs D. Nitrobacter sp. 14. The structural adaptation of 17. Movement of minerals and desert plants for water chemical compounds with a plant conservation is occurs during A. broad leaves with numerous A. osmosis stomata B. translocation B. spongy mesophyll C. transpiration C. spiny leaves D. diffusion D. prominent stomata in leaves 18. The enzyme that is present in 15. The long and sharp clawed the saliva is feet of birds is an adaptation for A. rennin A. crushing seeds B. lipase B. scooping mud C. pepsin C. tearing flesh D. ptyalin D. grasping prey 19. Plants that have special 16. During the manufacture of devices for trapping and digesting food by plants, which of the insects are A. carnivorous D. Chlamydomonas B. symbiotic C. parasitic 23. Which blood cell are involved D. saprophytic in the immune response of vertebrates? 20. The process of transforming the chemical energy of cellular A. Phagoecytes fuels into the high energy bonds of B. lymphocytes ATP in plants is C. erythrocytes D. monocytes A. autotropism B. photosynthesis 24. The blood circulatory system C. photolysis of vertebrates consists of D. respiration A. heart, arteries, capillaries and 21. Fungi are referred to as veins hetotrophs because they B. heart, aorta, capillaries and veins A. are filamentous C. heart, aorta, arteries and veins B. lack chlorophyll D. heart, vena cava, arteries, and C. have mycelium veins D. lack roots 25. A plant tissue that carries 22. An example of a parasitic water and mineral salts is the protozoan is A. cambium A. Paramecium B. xylem B. Plasmodium C. cortex C. Euglena D. phloem 26. Which of the following helps in B. Uric acid the clotting of blood? C. Sweat D. Mucilage A. Red blood cells B. White blood cells 30. The main structure in C. Plasma vertebrates that supports and D. Platelets protects the body is the 27. Which of the following forms A. skeleton about 55% of the volume of the B. ligament blood in man? C. muscle D. joint A. leucocytes B. platelets 31. The chitin in the exoskeleton C. plasma of many arthropods is D. erythrocytes strengthened by 28. The part of the mammalian A. lids skin involved in excretion is the B. proteins C. calcium compounds A. sweat glands D. organic salt B. Malpighian layer C. sebaceous gland 32. The transfer of pollen grains D. horny layer from the anther to a sigma is 29. Which of the following is a A. propagation waste product of an insect? B. placentation C. pollination A. Alkaloids D. fertilization 33. The male reproductive organ C. rod of a flower is the D. iris A. carpel 37. The absence of anti-diuretic B. stamen hormone in humans results in C. petal D. sepal A. decreasing dehydration B. drastic dehydration 34. The gland that is found just C. eliminating dehydration below the hypothalamus is the D. increasing dehydration A. parathyroid 38. Oestrogen is a hormone that B. adrenal is synthesized in the C. pituitary D. thyroid A. ovaries B. testes 35. The most important plant C. anterior pituitary hormone is D. adrenal cortex A. cytokinin 39. The eye defect cause by the B. abscisic acid development of cloudy areas in the C. auxin lenses is D. gibberellin A. presbyopia 36. The sensory cell that responds B. glaucoma to dim light is referred to as the C. cataract D. astigmatism A. cone B. lens 40. A pollutant that is C. Tuberculosis biodegradable is D. Syphilis A. crude oil 44. To which blood group do B. heavy metals universal recipients belong? C. cellophane D. sewage A. B B. A 41. A tropical disease caused by C. O Trypanosoma is D. AB A. sleeping sickness 45. The clumping together of red B. river blindness blood cells is C. yellow fever D. malaria A. agglutination B. fusion 42. The solid part of the C. transfusion ecosystem is referred to as the D. compatibility A. atmosphere 46. Physiological adaptation to B. hydrosphere very dry conditions in animals C. biosphere demonstrates D. lithosphere A. rejuvenation 43. Which of the following is B. xeromorphism caused by Treponema palladium? C. hibernation D. aestivation A. Gonorrhoea B. Leprosy 47. One of adaptation of Cactus A. symbiosis opuntia to conserve water is the B. saprophytism reduction of C. parasitism D. commensalisms A. internodes B. stem to leaves ANSWER KEYS C. leaves to spine D. flower size 1. C 2. B 3. D 4. D 5. D 6. C 7. B 8. D 9. A 10. A 11. D 12. C 13. A 48. Which of the following 14. C 15. D 16. A 17. B 18. D structure is adapted for feeding in 19. A 20. D 21. B 22. B 23. A a bird of prey? 24. A 25. B A. Hooked break and sharp claws 26. D 27. C 28. A 29. B 30. A B. Smooth beak and strong claws 31. C 32. C 33. B 34. C 35. C C. Big beaks and strong feet 36. C 37. A 38. A 39. C 40. D D. Pointed beak and strong claws 41. A 42. D 43. D 44. D 45. A 46. C 47. C 48. A 49. A 50. A 49. The special pigment for colour change in chameleon is A. melanin B. carotenoid C. chromatin D. chromatophore 50. The behavioural adaptation in social insects could best be described as  2014 JAMB BIOLOGY QUESTIONS PAPER TYPE: L A. III B. IV 1. Which Question paper Type of C. I Biology is given to you? D. II A. Type F 4. The lowest level of organization B. Type E in living organisms is C. Type L D. Type S A. organ B. cell Use the diagram below to C. system answer 2 and 3. D. tissue 5. Which of the following is the most complex according to their cellular level of organization? A. Heart B. Hair C. Euglena 2. The part labelled II is the D. Hydra A. nucleus Use the diagram below to B. eyespot answer questions 6 and 7 C. basal granule D. contractile vacuole 3. The part responsible for photosynthesis is labelled  C. Amoeba D. Euglena 9. In bryophytes, sex organs are produced in the A. protonema 6. The organs for attachments to B. sporophyte the lining of the host's intestine are C. gametophyte labelled D. rhizoid A. II and III 10. Seed plants are the most B. III and IV dominant vegetation on land C. I and II because of D. I and III A. their motile gametes 7. The young proglottid is B. their ability to photosynthesize represented by C. efficient seed dispersal D. availability of water A. III B. IV 11. Which of the following is an C. I arboreal organism? D. II A. Elephant 8. Which of the following B. Fish organisms is multi-cellular? C. Antelope D. Bird A. Chlamydomonas B. Spirogyra Use the diagram below to smaller organisms like Amoeba answer questions 12 and 13 because 12. The part labelled I is the A. amoeba lives in freshwater B. diffusion is sufficient to A. xylem transport materials in Amoeba B. phloem C. amoeba lacks blood containing C. root hairs haemoglobin D. cortex D. amoeba exhibits anaerobic respiration 13. The diagram is the transverse section of a 16. In vascular plants, the sieve tubes and companion cells are A. monocotyledonous stem present in the B. dicotyledonous stem C. monocotyledonous root A. cambium D. dicotyledonous root B. cortex C. xylem 14. I , c , pm , m. D. phloem The general formula above 17. The stomata of leaves are represents that of similar in function to the A. an omnivore A. pharynx of humans B. a detritus feeder B. scales of fish C. a carnivore C. spiracle of insects D. a herbivore D. trachea of toads 15. A circulatory system is very essential in mammals but not in 18. The use of moist skin for A. mosses respiration in amphibians is known B. fungi as C. grasses D. conifers A. cellular respiration B. cutaneous respiration 22. I. Growth is mainly apical C. buccal respiration II. Growth is specific with definite D. pulmonary respiration shape III. Growth is throughout life. 19. Water in plants is removed as water vapour through the process Which of the above correctly of describes the growth pattern in plants? A. diffusion B. osmosis A. I, II and III only C. evaporation B. II and III only D. transpiration C. I and II only D. I and III only 20. An example of an organ of perennation in plants is 23. Coordination and regulation of body activities in mammals are A. rhizome achieved by the B. seed C. petal of a flower A. nerves and muscle D. calyx of flower B. nerves and hormones C. nerves only 21. Alternation of generation is a D. hormones only feature shown in 24. The Cerebellum of the Brain A. edaphic controls B. physiographic C. biotic A. reflex action D. topographic B. muscular activity C. emotional expressions 28. The genetic make-up of an D. the Endocrine system organism is described as 25. The part of the brain A. allele responsible for peristalsis is the B. chromosome C. phenotype A. Olfactory Lobe D. genotype B. Medulla Oblongata C. Hypothalamus 29. The major limiting factor of D. Thalamus productivity in the aquatic habitat is 26. Which of the following instruments is used for measuring A. food atmospheric pressure? B. temperature C. water A. Hydrometer D. sunlight B. Hygrometer C. Thermometer 30. Which of the following group D. Barometer of organisms feeds directly on green plants? 27. The influence of soil on organisms in a habitat is referred A. Primary Consumers to as B. Secondary Consumers C. Producers D. Decomposers D. Guinea Savanna 31. A characteristic feature of 34. Which of the following is a tropical rainforest is that it nitrogen fixing blue-green algae of soil? A. Contains trees with narrow leaves A. Rhizobium B. Contains large number of plant B. Nitrosomonas species C. Clostridium C. Contains fewer number of plant D. Anabaena species D. Has total annual rainfall of less 35. The soil with highest water- than 50cm retaining capacity is 32. The study of how and why A. Clayey Soil population size change over time is B. Stoney soil C. Sandy soil A. Population estimation D. Loamy Soil B. Population dynamics C. Population ecology 36. The causative agent of D. Population Cycle Poliomyelitis is 33. A severe and long dry season A. Virus is a characteristic feature of B. Fungus C. Protozoan A. Sahel Savanna D. Bacterium B. Mangrove Swamps C. Sudan Savanna 37. One of the ways of controlling noise pollution in urban areas is A. by siting industries away from 40. A pollutant that is mostly residential areas associated with acid rain is B. that fuel should be completely combusted by engines A. Nitrogen (IV) Oxide C. by planting trees on both sides B. Ozone of the road C. Fluorine D. by wearing ear devices 41. When the adults have reach a 38. A constituent of the exhaust certain degree of weakness, the fumes from electricity generating process of binary fission is sets which causes serious pollution replaced by conjugation in is A. Paramecium A. Carbon (II) Oxide B. Euglena B. Water Vapour C. Amoeba C. Ozone D. Plasmodium D. Carbon (IV) Oxide 42. Whorls, arches, loops and 39. Which of the following is true compounds are types of variation of small pox? in A. It is transmitted by bacteria A. Colour B. It can effectively be controlled B. Finger prints with antibiotics C. Hair Colour C. It can effectively be controlled D. Blood group by vaccination D. It is a water-borne infection 43. A couple has 10 children, all female. Which of the following best explains the situation? A. The sex determination was by B. A, AB and O only the man's X chromosome C. AB only B. The man's sperm count is low D. A and B only C. The woman is not capable of producing male children 47. The stream-lined shape of D. The sex determination was by fishes is an adaptation for the man's Y chromosome A. Securing mates 44. A biological agent with B. easy movement antiviral property is C. obtaining food D. defence and attack A. Interferon B. enzyme 48. An example of a C. antibiotic poikilothermic organism is a D. disinfectant A. Lizard 45. One of the advantages of B. Cockroach outbreeding is C. rabbit D. bird A. pests tolerance B. disease resistance 49. All living organisms are C. fast growth constantly involved in a struggle D. tall height for existence. This was proposed by 46. An individual with blood group AB can receive blood from those in A. Morgan blood group(s) B. Darwin C. Lamarck A. A, B, AB, O D. Wallace 50. Adaptive radiation is illustrated in A. modified insect mouthparts B. dentition in mammals C. wings in birds and bats D. appendages in insects ANSWER KEYS 1. C 2. D 3. A 4. B 5. B 6. A 7. B 8. B 9. C 10. C 11. D 12. C 13. D 14. D 15. B 16. A 17. C 18. B 19. D 20. B 21. A 22. D 23. B 24. B 25. B 26. D 27. A 28. C 29. A 30. A 31. B 32. B 33. A 34. A 35. A 36. A 37. A 38. A 39. C 40. A 41. A 42. B 43. A 44. B 45. B 46. A 47. B 48. A 49. B 50. C  2015 JAMB BIOLOGY QUESTIONS 1. Which of the following has the 4. The theory which supports the most primitive respiratory system? view that the large muscles developed by an athlete will be A. insect passed on to the offspring was B. fish proposed by C. snail D. mouse A. Mendel B. Darwin 2. One adaptation shown by C. Lamark hydrophytes in fresh water D. Pasteur habitats is the 5. The chromosomes of members A. waxy cuticle on shoot surface of the kingdom Monera are within B. poor development of roots and the xylem tissues C. well-developed roots and A. nucleoplasm supporting system B. nucleus D. leaves reduced to spines C. nucleolus D. cytoplasm 3. Which of the following use diffusion as the principal method of 6. The mangrove swamp in gaseous exchange? Nigeria is restricted to the A. grasshopper A. Sahel savanna B. rat spines B. Guinea savanna C. lizard C. Tropical rainforest D. earthworm D. Sudan savanna 7. The pancreas secretes enzymes A. colour of the skin in humans for the digestion of B. ability to roll the tongue C. possession of facial hair in A. fats, proteins and adult humans carbohydrates D. ability to grow. long hair in B. fats, vitamins and cellulose females C. fats, carbohydrates and vitamins 11. In which of the following D. proteins, cellulose and Nigerian states can montane minerals vegetation be found? 8. The causative agent of bird flu A. Bauchi is a B. Plateau C. Taraba A. protozoan D. Enugu B. virus C. bacterium 12. Which of the following is true D. fungus of cloning? 9. A water medium is necessary A. it is welcomed as an ethically for fertilization in and normally sound science B. it involves the asexual A. conifers multiplication of the tissues of the B. angiosperms original organism C. ferns C. the clone is similar to but not D. fungi exactly like the original organism D. only one cell of the original 10. An example of a sex-linked organism is needed to imitate the trait is the process 13. The process of shedding the A. RNA analysis exoskeleton of an arthropod is B. blood group test known as C. behavioural traits test D. DNA analysis A. ecdysis B. in star formation 17. An example of a fish that C. metamorphosis aestivates is D. osmosis A. croaker 14. Which of the following is a B. lung fish major cause of constipation in C. shark humans? D. cat fish A. lack of roughage 18. The opening and closing of B. vitamin B the stoma are regulated by C. vitamin E D. lack of salts A. respiration B. osmosis 15. In mammals, the organ C. diffusion directly on top of the kidney is the D. transpiration A. adrenal gland 19. Which of the following is B. prostate gland common to the mosquito, housefly C. pancrease and blackfly? D. thyroid gland A. they are parasites of man 16. An accurate identification of a B. their immature stages are rapist can be carried out by aquatic conducting a C. they undergo complete 22. The waste product of plants metamorphosis used in the conversion of hide to D. their adults have two pairs of leather is wings A. alkaloid 20. The organs that will be most B. resin useful to giant African rats in C. tannin finding their way in underground D. gun habitats are the 23. The correct sequence of the A. nostrils movement of urea during B. eyes formation is C. vibrissae D. tails A. glomerulus - Bowman's capsule - convoluted tubule - Henle's loop 21. A crucible of 5gm weighed - collecting tubule 10gm after filling with fresh soil. It B. convoluted tubule - glomerulus is then heated in an oven at 1000C - Henle's loop - Bowman's capsule for 1 hour. After cooling in a - collecting tubule desiccator, the weight was 8gm. C. glomerulus - Bowman's capsule The percentage of water in the soil – convoluted tubule - Henle's loop is - collecting tubule D. convoluted tubule - Bowman's A. 0.8 capsule - Henle's loop -glomerulus B. 0.2 – collecting tubule C. 0.4 D. 0.6 24. In lizards, the lowing of the gular fold is used to A. defend their territory 28. The eye defect that rises B. attract mates because the cornea is not curved C. frighten enemies smoothly is D. catch insects A. astigmatism 25. The photosynthetic pigments B. short-sightedness include C. long-sightedness D. presbyopia A. chloroplast and cytochromes B. melanin and haemoglobin 29. Which of the following is an C. chlorophyll and carotenoids example of parasitism? D. carotenoids and haemoglobin A. a squirrel living in an 26. The highest level of ecological abandoned nest of a bird organization is the B. mistletoe growing on an orange tree A. ecosystem C. fungi growing on a dead tree B. niche branch C. biosphere D. cattle egrets taking tasks from D. population the body of cattle 27. A biotic factor which affects 30. The increasing order of the the distribution and abundance of particle size in the following soil organism in a terrestrial habitat is types is A. pH A. cattle sand – clay-gravel B. competition B. clay - silt sand – gravel C. temperature C. silt - clay - sand - gravel D. light D. clay - sand - silt – gravel 31. Which of following factors can B. nucleolus bring about competition C. endoplasmic reticulum population? D. mitochondrion A. emigration 34. The organelle responsible for B. drought heredity is C. mortality D. dispersion A. IV B. I 32. Stunted growth and poor root C. II development are a result of a D. III deficiency in Use the diagram below to A. phosphorus answer questions 35 and 36. B. calcium C. sulphur D. iron Use the diagram below to answer question 33 and 34. 35. The process illustrated is A. gametogenesis B. sexual reproduction in Rhizopus 33. The cell organelle solely C. sexual reproduction in responsible for respiration is the Spirogyra D. sporulation A. nucleus Expobite.Net 36. The structure labelled I is the Use the diagram below to answer questions 39 and 40. A. zygospore B. conidiophore C. sporangium D. hypha Use the diagram below to answer questions 37 and 38. 39. The part labelled I is the A. pulmonary artery B. bicuspid valve 37. The organelle responsible for C. aorta sexual reproduction is D. vena carva A. IV 40. Oxygenated blood is pumped B. I to the entire body from the part C. II labelled D. III A. IV 38. The part labelled IV is B. I responsible for C. II D. III A. respiration B. ingestion Use the diagram below to C. locomotion answer questions 41 and 42. D. osmoregulation  43. The breeding posture illustrated in the diagram is known as A. reproductive swimming 41. The experiment demonstrates B. amplexus C. mating A. hydrotropism D. courtship B. phototropism C. thigmotropism 44. The diagram shows that the D. hydrotropism organisms are 42. The part marked I will contain A. viviparous a high concentration of B. hermaphrodite C. ovoviviparous A. ethylene D. oviparous B. abscisic acid C. auxin 45. Insulin is produced by the D. ascorbic acid endocrine organ labeled Use the diagram below to A. I answer questions 43 and 44 B. IV C. III D. II 46. Which of the following will be true of dog II which lost its tail in an accident if it mates with dog III? A. all its offspring will be born 48. The type of protective without tails adaptation exhibited by the animal B. 3/4 of its offspring will be born is without tails C. none of its offspring will be A. flash coloration born without a tail B. countershading colouration D. 1/4 of its offspring will be born C. warning colouration without tails. D. disruptive colouration 47. If the dogs are offspring of a 49. The structure labeled I is monohybrid cross and the gene G for grey head is dominant over as A. tactile illele g, the individual whose B. radiosensitive genotype is likely to be gg is C. photosensitive D. chemoreceptive A. I B. IV ANSWER KEYS C. III D. II 1. A 2. B 3. D 4. C 5. D 6. C 7. A 8. B 9. C 10. C 11. B 12. D 13. A Use the diagram below to 14. A 15. A 16. D 17. B 18. C answer questions 48 and 49. 19. C 20. C 21. C 22. C 23. A 24. C 25. C 26. A 27. C 28. A 29. B 30. B 31. B 32. A 33. D 34. D 35. B 36. A 37. D 38. D 39. A 40. B 41. B 42. C 43. C 44. D 45. C 46. C 47. C 48. C 49. B 50. A  2016 JAMB BIOLOGY QUESTIONS 1. Which of the following 4. Which of the following is NOT structures is a protective adaptive part of the carbon cycle? feature of the Agama Lizard to the environment? A. Organic carbon B. Decomposition A. Nuchal crest C. Nitrates formation B. Claws D. Photosynthesis C. Scaly skin D. Gular fold. 5. I. Tissues II. System 2. Which of the following adapts III. Cell an insect for feeding? IV. Organs A. suitable mouthparts Which of the above is the level of B. paired antennae organization of a leaf? C. segmented body D. jointed appendages A. IV B. I. 3. Which of the following results C. III. from the cross between Yy and Yy? D. II. A. 2Yy-2yy 6. In cellular respiration, energy B. 2Yy:yy:YY is stored in the form of C. YY:2Yy:yy D. YY: Yy:2yy A. heat energy B. adenosine diphosphate C. adenosine monophosphate D. adenosine triphosphate 7. The principal organ for the 10. The rise and fall of ocean manufacture of food in autotrophy water during the day is referred to is the as A. root hair A. gravity B. growing root B. a pull C. mature fruit C. tide D. green leaf D. zone 8. A disease that results from lack 11. Which of the following is a of iodine in the diet of humans is producer in an aquatic habitat? A. beriberi A. Nymphaea B. scurvy B. Dryopteris C. rickets C. planarian D. goiter D. Similium 9. The process whereby some 12. The relationship that exist organism with certain favourable between a shark and Remora is features get established in an area is A. parasitism B. commensalism A. gene mutation C. saprophytism B. dispersal D. symbiosis C. overcrowding D. natural selection 13. I. Tissue II. System III. Cell IV Organ The correct sequence of B. vitamin E. increasing level of complexity is C. vitamin B D. vitamin C A. IV-II-III B. I-II-III-IV 17. Bacteria which add C. IV-III-I-II atmospheric nitrogen to the soil D. III-I-IV-II are 14. Which of the following is not A. putrefying bacteria an inheritable disease? B. nitrifying bacteria C. nitrogen fixing bacteria A. Poliomyelitis D. denitrifying bacteria B. Sickle-cell anaemia C. Mental illness 18. The spines of the hedgehog is D. Haemophilia an adaptive features for 15. Which of the finger print types A. Courtship occur most frequently in the B. defence population of human beings C. water conservation D. obtaining food A. Double-loop B. Whorl 19. The dental formula of C. Arch carnivores is represented by D. Loop A. I ,C , pm , m 16. Beriberi results from a B. I ,C , pm , m deficiency of C. I ,C , pm , m A. vitamin A D. I , C , pm , m 23. Mammals requires roughage in their food to 20. Which of the following A. provide energy instruments is used to measure B. slow down aging temperature? C. ease digestion D. prevent disease A. Thermometer B. Hygrometer 24. Variation can occur among C. Anemometer offspring of living organism D. Hydrometer because 21. In human, puffiness and A. seeds are produced by self- water retention in the body is a pollination possible symptom of B. zygotes are produced by cross fertilisation A. bladder malfunction C. they are produced by binary B. poor digestion fission C. kidney malfunction D. they are produced without D. obesity fertilisation 22. The theory of evolution which 25. The most important biotic postulates that all living organisms factors which affect plants and have a common ancestor was animals in the habitat are proposed by A. temperature and rainfall A. Linnaeus B. temperature and turbidity B. Darwin C. salinity and relative humidity C. Lamarck D. rainfall and relative humidity D. Mendel 26. The lowest unit of 29. The cell organelle solely classification is the responsible for respiration is the A. Kingdom A. nucleus B. class B. nucleolus C. phylum C. endoplasmic reticulum D. species D. mitochondrion 27. Two important process 30. In which part of Nigeria are involved in the absorption and Mangrove swamps found? transport of materials in plants are A. Chad Basin A. flaccidity and turgidity B. Niger Delta B. diffusion and plasmolysis C. Benue Valley C. plasmolysis and capillarity D. Mambilla Plateau D. osmosis and diffusion 31. The breeding methods that 28. A series of organism existing are useful in selective breeding of in an ecosystem through which animals and plants are energy is transformed can be referred to as A. inbreeding and cross- breeding B. inbreeding and hetero-breeding A. food cycle C. inbreeding and out-breeding B. food chain D. inbreeding and self-breeding C. pyramid on numbers D. food web 32. In a small unicellular organism, diffusion is sufficient for transport because A. the surface area to volume A. pressure and wind speed ratio is small B. temperature and wind speed B. they have lungs for diffusion C. pressure and rainfall C. materials have to move over D. Temperature and rainfall long distance D. the surface area to volume 36. I. Strong winds ratio is large II. high temperature III. Dry and porous soils. 33. The function of the spinal cord is to Which group of plants are specially adapted to grow under A. stand the body structure erect environmental conditions stated B. control involuntary actions above? C. transmit impulses to the brain D. regulates developmental A. Thallophytic changes B. Mesophytes C. Xerophytes 34. The first vertebrates to D. Hydrophytes ventures out of water and lives on land are the 37. The lowest unit of a biogeographical plant species is A. Pisces B. Amphibians A. micro flora C. Reptiles B. macro fauna D. Aves C. micro fauna D. macro flora 35. Which of the following factors mostly determine the major 38. Which of the following is rich biomes of the world. source of vitamin K? A. Tomato B. protists B. Guava C. coelenterates C. Milk D. Anthropods D. Onion 42. Physiological variation in 39. Severe diarrhea, dehydration human population is evidence in and weakness are symptoms of the A. cholera A. difference in the fingerprints B. chickenpox B. physical appearance of C. malaria individuals D. yellow fever C. differences in height and weight 40. A common characteristic D. ability to roll the tongue found among the crustaceans is the possession of 43. In photosynthesis, oxygen is liberated during A. a pair of antennae B. a pair of walking legs on each A. conversion of energy segment B. photolysis C. four pairs of walking legs on C. splitting of carbon (IV)oxide the cephalothorax D. glycolysis D. two pairs of antennae Use the information below to 41. In which of the following answer the question 44 and 45 groups of invertebrates are flagella that follows and cilia found A. annelids  The type vertebra represented in the diagram is 44. What is the total height of rice that grew within the years of A. Atlas cultivation? B. Lumbar C. Axis A. 240 cm D. Sacrum B. 239 cm C. 340 cm 47. The structure labeled I is D. 339 cm A. Centrum 45. What is the average of the B. neural canal heights of rice within the period of C. neural spins cultivation? D. transverse process A. 68cm ANSWER KEYS: B. 47.8cm C. 48cm 1. C 2. A 3. C 4. C 5. A 6. D 7. D D. 67.8cm 8. D 9. D 10. C 11. C 12. B 13. D 14. A 15. B 16. B 17. C 18. C 46. Use the diagram below to 19. B 20. C 21. A 22. C 23. B answer the question that follows 24. C 25. B 26. A 27. D 28. D 29. C 30. D 31. B 32. C 33. D 34. C 35. B 36. D 37. C 38. A 39. D 40. A 41. D 42. B 43. D 44. B 45. B 46. B 47. B  2017 JAMB BIOLOGY QUESTIONS 1. The piercing and sucking A. locust, camel, lizard and mouth parts are found in snakes B. monkeys, chameleon, A. grasshoppers earthworm and grasshopper B. mosquitoes C. monkeys, grasshopper, snail C. termites and snakes D. cockroaches D. lungfish, duck, butterfly and lizards 2. The hormones that regulate plant growth are 5. Suture joint is found in the A. ethylene and auxins A. hip B. auxin and gibberellins B. ankle C. cytokinin and abscisic acid C. skull D. ethylene and gibberellins D. elbow 3. Which of the following pair of 6. The organelle responsible for organisms exhibit parasitic osmoregulation in Paramecium is association? A. flame cell A. insect and plant B. nephridia B. cattle and egret C. contractile vacuole C. shark and remora D. Malpighian tubule D. tsetse-fly and cattle 7. Use the diagram to answer 4. Which of the following group of the question that follow animals can withstand the rigour of the arid land?  10. When testing for the presence of starch in a leaf, the reason for dipping the decolourised leaf in hot water is to The excretory organ of an earthworm is represented by A. detect the starch B. kill the leaf A. IV C. soften the leaf B. I D. remove the chlorophyll C. III D. II 11. The relationship between remora and shark can best be 8. The platelets in mammalian described as blood are responsible for A. parasitism A. transporting oxygen B. amensalism B. initiating clotting C. mutualism C. removing carbon (IV) oxide D. commensalism D. destroying micro-organisms 12. The major characteristic of a 9. The most important factor that fresh water habitat is the determines the different types of possession of vegetation is A. high turbidity A. light B. high density B. wind C. low salinity C. temperature D. high current D. rainfall 13. The causative organism of B. paramecium caudatum cholera is C. hydra viridis D. onion bulb A. Clostridium sp B. shigella sp 17. The simplest form of C. vibrio sp reproduction is D. salmonella typhi A. conjugation 14. The process that takes place B. budding in the dark stage of photosynthesis C. spore formation is D. binary fission A. oxidation of water 18. Which of the following is a B. photolysis of water characteristic of wind-pollinated C. oxidation of carbon (IV) oxide flower? D. reduction of carbon (IV) oxide A. flowers lack nectar 15. Chlorofluorocarbons are air B. flowers are conspicuous pollutants that originates from C. flowers have perianths D. flowers are bisexual A. crude oil refining B. coal mining 19. Use the diagram to answer C. motor vehicle exhaust the question that follow D. cooling system 16. Which of the following is organ level of organisation? The most eminent unit in terms or water conservation is represented A. Volvox sp by A. IV C. 12.5 B. I D. 33.3 C. III D. II 22. The presence of termites and earthworms in soil promote 20. The process required for formation of gamete in sexual A. porosity and fertility reproduction is B. porosity and aeration C. aeration and fertility A. implantation D. acidity and aeration B. fertilisation C. mitosis 23. In a 15m2 habitat, the total D. meiosis number of Tridax counted using a 1.6m2 quadrant thrown randomly 21. In an experiment to 50 times was 400. What is the determine the humus in a soil Tridax sample the following results were obtained A. 12 B. 16 Mass of dish - 20g C. 8 Mass of dry soil - 7.5g D. 5 Mass of dish + soil after burning = 25g 24. Which of the following is a sex-link character? The percentage of humus in the given sample is A. Dwarfism B. Albinism A. 9.1 C. Tongue rolling B. 37.5 D. Colour blindness 25. The outer-most tissue of the A. obtain food herbaceous roots is the B. predators C. secure mates A. cuticle D. escape detection B. pericycle C. epidermis 29. Which of the following is the D. endodermis most advance plant? 26. The res