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Questions and Answers
Which disease is commonly contracted in areas with fast-flowing rivers?
Which disease is commonly contracted in areas with fast-flowing rivers?
- Onchocerciasis (correct)
- Elephantiasis
- Syphilis
- Schistosomiasis
What is the main function of the choroid in the eye?
What is the main function of the choroid in the eye?
- Protection of the eye ball
- Supply of nutrients to tissues of the eye (correct)
- Transmission of light
- Converging light
Which part of the central nervous system is involved in answering an examination question?
Which part of the central nervous system is involved in answering an examination question?
- Cerebrum (correct)
- Cerebellum
- Medulla oblongata
- Spinal cord
Which mineral nutrient is most bound to the soil?
Which mineral nutrient is most bound to the soil?
Which nutrient is most likely to be leached out of the soil?
Which nutrient is most likely to be leached out of the soil?
Most commercial fertilizers are rich in which of the following nutrients?
Most commercial fertilizers are rich in which of the following nutrients?
What common characteristic do crustaceans possess?
What common characteristic do crustaceans possess?
Which component is NOT similar between castor oil seed and maize grain?
Which component is NOT similar between castor oil seed and maize grain?
Where are aged erythrocytes destroyed in the body?
Where are aged erythrocytes destroyed in the body?
Which is a characteristic of exponential population increase in organisms?
Which is a characteristic of exponential population increase in organisms?
What causes seedlings in a rice field to grow thin and lanky with poor root development?
What causes seedlings in a rice field to grow thin and lanky with poor root development?
What is the irreversible process that adds new protoplasm to increase an organism's size?
What is the irreversible process that adds new protoplasm to increase an organism's size?
What will happen when Group A serum mixes with Group B erythrocytes?
What will happen when Group A serum mixes with Group B erythrocytes?
Which hormones can induce fruit enlargement by spraying young ovaries?
Which hormones can induce fruit enlargement by spraying young ovaries?
What is the primary enzyme found in pancreatic juice that acts on carbohydrates?
What is the primary enzyme found in pancreatic juice that acts on carbohydrates?
Which of these organisms is NOT a hermaphrodite?
Which of these organisms is NOT a hermaphrodite?
Which of the following organisms is least likely to have a parasitic form?
Which of the following organisms is least likely to have a parasitic form?
What is the primary function of the swim-bladder in fishes?
What is the primary function of the swim-bladder in fishes?
What is the correct trend of structural organization from simplest to most complex?
What is the correct trend of structural organization from simplest to most complex?
Which of the following statements provides the best description of bark?
Which of the following statements provides the best description of bark?
In the context of vascular bundles in maize, how are they arranged?
In the context of vascular bundles in maize, how are they arranged?
Which type of teeth would an animal with diastema NOT possess?
Which type of teeth would an animal with diastema NOT possess?
What is the primary function of trichocysts in Paramecium?
What is the primary function of trichocysts in Paramecium?
Which group of plants can survive in places where the water supply is limited?
Which group of plants can survive in places where the water supply is limited?
Banana, plantain, and pineapple can be grouped together because they:
Banana, plantain, and pineapple can be grouped together because they:
Which of the following diseases is NOT directly caused by bacteria?
Which of the following diseases is NOT directly caused by bacteria?
What is the correct order of development for the following structures during the metamorphosis of a toad?
What is the correct order of development for the following structures during the metamorphosis of a toad?
The dental formula i 3/3: c 1/1: pm 4/4: m 2/3 = 42 represents the dentition of what?
The dental formula i 3/3: c 1/1: pm 4/4: m 2/3 = 42 represents the dentition of what?
What is the function of the ossicles (malleus, incus, and stapes) in the mammalian ear?
What is the function of the ossicles (malleus, incus, and stapes) in the mammalian ear?
Which statement is NOT true regarding insectivorous plants?
Which statement is NOT true regarding insectivorous plants?
The tuber of cassava is NOT a stem tuber because it:
The tuber of cassava is NOT a stem tuber because it:
Which group of invertebrates reproduces by budding?
Which group of invertebrates reproduces by budding?
Which characteristic is common to both Amoeba and Paramecium?
Which characteristic is common to both Amoeba and Paramecium?
How does Hydra remove undigested food?
How does Hydra remove undigested food?
In bryophytes, where are sex organs produced?
In bryophytes, where are sex organs produced?
What is the initial step in the process of photosynthesis?
What is the initial step in the process of photosynthesis?
Which food substance produces a brick-red color when warmed with Benedict's solution?
Which food substance produces a brick-red color when warmed with Benedict's solution?
Which organ secretes digestive enzymes and hormones?
Which organ secretes digestive enzymes and hormones?
Why is the villus in the small intestine significant?
Why is the villus in the small intestine significant?
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Study Notes
Plant Adaptations
- Xerophytes are plants that can survive in places with limited water supply.
Plant Reproduction
- Banana, plantain, and pineapple are grouped together because they produce suckers.
Diseases
- Malaria is not caused directly by bacteria.
Animal Development
- The order of development during the metamorphosis of the toad is: Mouth, Forelimbs, Hindlimbs, External gills, Internal gills.
Animal Anatomy
- Rabbits have a dental formula of i 3/3: c 1/1: pm4/4: m2/3 = 42.
Insectivorous Plants
- Insectivorous plants obtain part of their food by trapping and digesting insects.
Hermaphrodites
- Schistosoma is not a hermaphrodite.
Animal Classification
- Molluscs, Platyhelminthes, Nematodes, and Protozoa represent a trend from simple to complex structural organization with Protozoa being the simplest and Mollusca being the most complex.
Plant Structure
- The prothallus of a fern is equivalent to the gametophyte generation of a moss.
Paramecium
- Trichocysts in Paramecium are used for defense.
Food Digestion
- Cooked rice will be the first digested if ingested at the same time as cooked beans, cod liver oil, and roasted beef.
Eye Anatomy
- The choroid is responsible for supplying nutrients to the tissues of the eye.
Nervous system
- The cerebrum is the part of the central nervous system that is concerned with answering an examination question.
Blood
- Fibrin helps in the formation of blood clots.
Plant Hormones
- Auxin, cytokinin, and gibberellin are plant hormones that can induce fruit enlargement.
Invertebrates
- Coelenterata reproduces by budding.
Photosynthesis
- The first step in photosynthesis is the photolysis of water.
Food Tests
- Glucose produces a brick-red color when warmed with Benedict’s solution.
Organ Functions
- The pancreas secretes both digestive enzymes and hormones.
Small Intestine
- Villi in the small intestine increase the surface area for absorption.
Pollution
- The addition of fertilizer to farmland causes pollution.
Soil Nutrients
- Phosphorus is the mineral nutrient most bound to the soil.
- Nitrate is the mineral nutrient that easily gets leached out of the soil.
Commercial Fertilizers
- Most commercial fertilizers are rich in salts of nitrogen, phosphorus, and potassium.
Decomposition
- Bacteria and fungi decompose dead plants and animals.
Crustaceans
- Crustaceans possess two pairs of antennae.
Spiders
- Spiders use pedipalpi for grasping.
Plant Seed Structure
- Castor oil seed and maize grain are similar except for the number of cotyledons.
Corm vs Bulb
- A corm differs from a bulb in that its stem is the main food storage organ.
Population Growth
- Exponential increase in population is a characteristic feature of binary fission.
Life Processes
- Anabolism is the irreversible life process by which new protoplasm is added to increase the size and weight of an organism.
Plant Reproduction
- Algae, bryophytes, and pteridophytes are similar in that they require moisture for fertilization.
Fern Spores
- Fern spores are dispersed by wind.
Bryophyte Reproduction
- In bryophytes, sex organs are produced in the gametophyte.
Respiration
- In dim light, the rate of respiration may equal that of photosynthesis.
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