Animal Kingdom Past Paper PDF

24/12/2024 A Corporate Office : Aakash Tower, 8, Pusa Road, New Delhi-110005, Ph.011-47623456 MM : 540...

24/12/2024 A Corporate Office : Aakash Tower, 8, Pusa Road, New Delhi-110005, Ph.011-47623456 MM : 540 Animal KIngdom. Time : 60 Min. Animal KIngdom. 1. A mesodermal endoskeleton made of calcareous plates 7. Cucumaria and Ophiura belong to the phylum or ossicles is seen in (1) Hemichordata (1) Ophiura (2) Cephalochordata (2) Euspongia (3) Echinodermata (3) Octopus (4) Mollusca (4) Meandrina 8. Radially symmetrical, exclusively marine group of 2. A : All bilaterally symmetrical animals have a circulatory animals belong to the phylum system for transport of nutrients, hormones, gases etc. (1) Cnidaria R : Closed type circulatory system came into origin along with motility of animals. (2) Porifera Both Assertion & Reason are true and the reason is (3) Ctenophora (1) the correct explanation of the assertion (4) Mollusca Both Assertion & Reason are true but the reason is (2) 9. Triploblastic, dorsoventrally flattened, acoelomate not the correct explanation of the assertion animals are commonly called (3) Assertion is true statement but Reason is false (1) Flatworms (4) Both Assertion and Reason are false statements (2) Roundworms 3. Common character shown by Nereis, Pila and Anopheles is (3) Segmented worms (1) Absence of segmentation (4) Silkworms (2) Closed circulatory system 10. Presence of which one is not a feature of Adamsia? (3) Presence of ventral nerve cord (1) Metagenesis (4) Nephridia for osmoregulation and excretion (2) Gastrovascular cavity 4. The mesoderm is present as scattered pouches in (3) Two germ layers between the ectoderm and endoderm in the body of (4) Cnidoblast (1) Aedes 11. In echinoderms, digestive system is complete with mouth (2) Aplysia on ______ side and anus on the _____ side. Select the correct option that fills the respective blanks. (3) Ancylostoma (1) Upper; lower (4) Antedon (2) Ventral; dorsal 5. ______ have rudimentary structure in the collar region called stomochord. Select the option which fills the blank (3) Dorsal; lateral correctly. (4) Dorsal; ventral (1) Molluscs 12. Choose mismatch w.r.t. animals and their common (2) Echinoderms names. (3) Annelids (1) Euspongia – Bath sponge (4) Hemichordates (2) Gorgonia – Sea anemone 6. Choose the correct option to complete the analogy. (3) Taenia – Tapeworm Laccifer : Lac insect :: _____ : Angelfish (4) Meandrina – Brain coral (1) Pteropus (2) Petromyzon (3) Pterophyllum (4) Pristis 13. Common feature between Saccoglossus and Anopheles 21. Unlike echinoderms, the annelids show are all, except (1) Presence of true coelom (1) Open circulatory system (2) Radial symmetry (2) Complete digestive tract (3) Presence of water vascular system (3) Multicellularity (4) Presence of metamerism (4) Body divided into head, thorax and abdomen 22. Select the correct set of coelomate animals. 14. The correct order of flow of water in simplest sponge is (1) Earthworm, Cuttlefish, locust (1) Ostia → Spongocoel → Osculum (2) Sycon, Earthworm, Ascaris (2) Spongocoel → Ostia → Osculum (3) Hydra, Earthworm, Pila (3) Osculum → Spicule → Spongocoel → Ostia (4) Fasciola, Earthworm, Ascaris (4) Ostium → Mesoglea → Osculum → Spongocoel 23. Economically harmful insect is 15. Read the following statements and choose the correct (1) Locusta option. Statement A : In annelids, body surface is distinctly (2) Bombyx marked out into metameres. Statement B : Nereis possesses parapodia which help (3) Apis only in swimming and neural regulation. (4) Laccifer (1) Both statements A and B are correct 24. An undifferentiated layer mesoglea can be found in (2) Only statement A is correct (1) Meandrina (3) Both statements A and B are incorrect (2) Sycon (4) Only statement A is incorrect (3) Fasciola 16. Specialised cells called flame cells are present in (4) Limulus members of the phylum that also possess 25. The undifferentiated layer present between the ectoderm (1) Hooks and suckers in parasitic forms and endoderm of coelenterates is (2) Regeneration capacity in all organisms (1) Mesohyl (3) Direct development in all of them (2) Gastral layer (4) Longitudinal and circular muscles for locomotion (3) Archenteron 17. Advancement of flatworms over cnidarians include all, (4) Mesoglea except 26. Mesoderm is present between the ectoderm and (1) Triploblasty endoderm in organisms belonging to the phylum (2) Organ level of organisation (1) Porifera (3) Cephalisation (2) Aschelminthes (4) Incomplete digestive tract (3) Ctenophora 18. The incorrect feature about feather-like gills present in the (4) Coelenterata members of second largest animal phylum is that 27. Choose the correct set which contains only diploblastic These are present in space between the hump and animals. (1) the mantle. (1) Physalia, Adamsia, Fasciola (2) They have respiratory and excretory functions. (2) Pennatula, Sea anemone, Taenia (3) They increase the area available for gas exchange. (3) Gorgonia, Meandrina, Adamsia (4) They play a role in digestion. (4) Adamsia, Ancylostoma, Meandrina 19. Animals which have bilateral symmetry in larval stage but exhibit radial symmetry in adult stage are 28. Organ level of organisation is present in (1) Molluscs (1) Coelenterates (2) Pisces (2) Platyhelminths (3) Echinoderms (3) Poriferans (4) Tunicates (4) Ctenophores 20. Flagellated cells which line the spongocoel and the 29. Statocysts present in arthropods are used in/as canals in sponges are called (1) Excretion (1) Choanocytes (2) Respiration (2) Spicules (3) Balancing organs (3) Flame cells (4) Feeding organ (4) Ostia 30. Body segmentation is absent in 38. Gills in molluscs (1) Nereis (1) Perform respiration as well as excretion (2) Aplysia (2) Are highly advanced teeth (3) Pheretima (3) Are present outside the mantle cavity (4) Hirudinaria (4) Has no role in the oxygenation of blood 31. Which one of the following statements about certain given 39. Select the organism where its mouth contains a file-like animals is correct? rasping organ for feeding. (1) Circulatory system is of open type in hemichordates (1) Nereis (2) Body of Limulus is covered by a calcareous shell (2) Saccoglossus Body of platyhelminth, Ascaris is circular in cross (3) Ophiura (3) section (4) Sepia (4) Molluscs are mostly viviparous 40. One of the representative of phylum Echinodermata is 32. Ascaris is characterised by (1) Echinus (1) Dorso-ventrally flattened body (2) Ascidia Presence of complete alimentary canal with a well- (2) (3) Balanoglossus developed muscular pharynx (3) Males are longer than females with curved tail (4) Pila Monoecious with internal fertilization and direct 41. Excretory system is absent in the members of phylum (4) development (1) Arthropoda 33. All of the following organisms possess water vascular (2) Hemichordata system, except (3) Annelida (1) Sea lily (4) Echinodermata (2) Sea cucumber 42. Choose the mismatch among the following. (3) Sea hare (1) Bombyx – Silkworm (4) Sea urchin (2) Locusta – Lac insect 34. Body segmentation is absent in (3) Limulus – King crab (1) Nereis (4) Culex – Mosquito (2) Aplysia 43. Exoskeleton of insects is formed by (3) Pheretima (1) Chitin (4) Hirudinaria (2) Calcium carbonate 35. Proboscis gland in hemichordates is associated with (3) Cellulose (1) Locomotion (4) Arthrodial membrane (2) Excretion 44. Which of the following features is not present in the (3) Respiration organisms of phylum Annelida? (4) Circulation (1) Metamerism 36. Mesodermally derived rod-like structure present in all (2) Nephridia chordates during their embryonic life as the main axial support of the body is (3) Parapodia (1) Pharyngeal gill slit (4) Jointed appendages (2) Notochord 45. True segmentation (metamerism) evolved for the first time in members of the phylum (3) Nerve cord (1) Annelida (4) Stomochord (2) Platyhelminthes 37. What is true about Balanoglossus, Sepia and Antedon? (3) Arthropoda (1) All belong to the same phylum (4) Mollusca (2) All possess water vascular system 46. True coelomate organism exhibiting metamerism, closed (3) All exhibit radial symmetry circulatory system and bilateral symmetry is (4) All possess true coelom (1) Bombyx (2) Aplysia (3) Ascidia (4) Pheretima 47. Water canal system in sponges assists in all of the 54. In terrestrial insects, respiration takes place through following, except (1) Book gills (1) Food gathering (2) Gills (2) Respiratory exchange (3) Book lungs (3) Removal of wastes (4) Tracheal system (4) Locomotion 55. Assertion (A): A closed circulatory system is present in 48. What is common among Culex, Limulus and Bombyx? annelids. Reason (R): In annelids, the blood is circulated through a (1) Nephridia series of closed vessels of varying diameters. (2) Radula In the light of above statements, choose the correct option. (3) Jointed appendages Both (A) and (R) are true and (R) is the correct (4) Metagenesis (1) explanation of (A) 49. In animals like a organs are associated to form Both (A) and (R) are true but (R) is not correct (2) ¯ ¯¯¯¯¯ functional systems, each system is concerned with a explanation of (A) specific physiological function. This pattern is called (3) (A) is true but (R) is false b of organisation. ¯¯¯¯¯ (4) (A) is false but (R) is true (1) a- echinoderms, b- organ level 56. Adult “X” are radially symmetrical whereas their larvae (2) a- cnidarians, b- tissue level are bilaterally symmetrical. Identify “X” from the options given below. (3) a- ctenophorans, b- organ system level (1) Echinoderms (4) a- hemichordates, b- organ system level (2) Poriferans 50. Assertion (A): Annelids and molluscs shown true metamerism. (3) Coelenterates Reason (R): In annelids and molluscs body is divided (4) Hemichordates both externally and internally into metameres. In the light of above statement, select the correct option. 57. In sponges, fertilisation is A and development is B. ¯¯¯¯¯¯¯ ¯¯¯¯¯ Both Assertion & Reason are true and reason is the Choose an option which fills the blanks A and B (1) correct explanation of the assertion. correctly. Both Assertion & Reason are true but reason is not (1) A - External, B - Indirect (2) the correct explanation of the assertion. (2) A - External, B - Direct (3) Assertion is true statement but Reason is false. (3) A - Internal, B - Indirect (4) Both Assertion and Reason are false statements. (4) A - Internal, B - Direct 51. The space between the __ A___ and the __B___ is called the mantle cavity. Choose the option which 58. Select the character mentioned below which is not observed in coelenterates. correctly fill the blanks A and B respectively (1) Shell, mantle (1) Sessile or free swimming (2) Mantle, radula (2) Exclusively marine (3) Hump, mantle (3) Tissue level of organisation (4) Hump, muscular foot (4) Possess a gastrovascular cavity 52. In how many of the organisms given in the box below, 59. Fasciola hepatica has respiration takes place through gills? (1) True coelom Saccoglossus, Ophiura, Laccifer, Loligo, Pterophyllum, (2) Pseudocoelom Alligator Select the correct option. (3) Only tissue level of organisation (1) Three (4) Incomplete digestive system (2) Four 60. Which of the following animals has both hooks and suckers as adaptations for parasitism? (3) Two (1) Fasciola (4) Five (2) Taenia solium 53. Nereis can be distinguished from Hirudinaria, as the former is (3) Ascaris (1) Dioecious (4) Nereis (2) Sexually reproducing (3) Triploblastic (4) True coelomate 61. Assertion (A): Sponges are hermaphrodite animals. 68. During the course of evolution, true coelom first appeared Reason (R): Eggs and sperms are produced by the same in the members of phylum individual. In the light of above statements, choose the correct (1) Echinodermata answer from the options given below. (2) Aschelminthes Both Assertion and Reason are true and Reason is (3) Annelida (1) the correct explanation of the Assertion (4) Platyhelminthes Both Assertion and Reason are true but Reason is not (2) 69. The phylum in which triploblasty appeared for the first the correct explanation of the Assertion time is (3) Assertion is true statement but Reason is false (1) Ctenophora (4) Both Assertion and Reason are false statements (2) Aschelminthes 62. All are characteristic features of phylum Platyhelminthes, except (3) Annelida (1) Dorso-ventrally flattened body (4) Platyhelminthes (2) Organ level organisation 70. Complete digestive tract with distinct mouth and anus was observed for the first time in the members of the (3) Presence of true segmentations phylum (4) Presence of hooks and suckers (1) Aschelminthes 63. Fertilization is A with B development in (2) Annelida Ctenoplana. Fill in¯¯¯the ¯¯¯¯¯ blanks A ¯and ¯¯¯¯¯¯¯ B by choosing the (3) Platyhelminthes correct option. (4) Coelenterata (1) A – Internal, B – Indirect 71. 'The former is a sessile and cylindrical form whereas the (2) A – Internal, B – Direct latter is umbrella-shaped and free-swimming form of (3) A – External, B – Indirect coelenterates.' The former and the latter respectively, are (4) A – External, B – Direct (1) Polyp; Medusa 64. When any longitudinal plane passing through the central (2) Medusa; polyp axis of the body divides the organism into the identical (3) Aurelia; Adamsia halves, it is called radial symmetry. Select the animal whose adult stage does not exhibit the above mentioned Sexually reproducing stage; Asexually reproducing (4) type of symmetry. stage (1) Ophiura 72. Which of the following features differentiates open circulatory system from closed type of circulatory system? (2) Ancylostoma (1) Presence of heart (3) Ctenoplana (2) Presence of arteries (4) Adamsia (3) Absence of capillaries 65. Which of the following is a living fossil? (4) Absence of circulatory fluid (1) Limulus 73. An excretory organ is absent in (2) Locusta (1) Saccoglossus (3) Wuchereria (2) Dentalium (4) Aplysia (3) Echinus 66. Complete the analogy : Locusta : Malpighian tubules : : Pinctada : ____ (4) Chaetopleura (1) Mantle 74. When any plane passing through the central axis of the body divides the organism into two identical halves, it is (2) Foot called (3) Radula (1) Asymmetry (4) Feather like gills (2) Radial symmetry 67. Which of the following is not a character of (3) Bilateral symmetry hemichordates? (4) Non-symmetry (1) Presence of notochord, which is mesodermal in origin 75. Multicellular organism among the following is (2) Excretory organ is proboscis gland (1) Hydra (3) Circulatory system is open (2) Amoeba (4) Respiration takes place through gills (3) Paramecium (4) Euglena 76. The property of living organisms to emit light is well 83. Nereis can be characterised by all of the following marked in features, except (1) Sponges (1) Aquatic annelid possessing parapodia (2) Platyhelminthes (2) Dioecious animal (3) Ctenophores (3) Possessing metameres (4) Annelids (4) Presence of open circulatory system 77. Choose the incorrect statement. 84. Which of the following animals are acoelomate and triploblastic with bilateral symmetry? Neural system in annelids consists of paired ganglia (1) connected to a single dorsal nerve cord (1) Annelids Mantle cavity in molluscs contains feather like gills (2) Arthropods (2) which have respiratory and excretory functions (3) Platyhelminthes Digestive system in echinoderms is complete with a (3) (4) Aschelminthes ventral mouth and dorsal anus Statocysts, antennae and eyes are sensory organs of 85. Blood vessels called capillaries are likely to be lacking in (4) arthropods (1) Earthworm 78. A : Water vascular system helps in nutrition, respiration, (2) Devil fish excretion and locomotion. R : Water vascular system is a characteristic feature of (3) Apple snail sponges. (4) Cat Both Assertion & Reason are true and the reason is (1) 86. In which of the following phylum are the general the correct explanation of the assertion characteristics correctly matched? Both Assertion & Reason are true but the reason is Excretion by malpighian (2) (1) Arthropoda : not the correct explanation of the assertion tubules (3) Assertion is true statement but Reason is false Respiration by nephridia (4) Both Assertion and Reason are false statements Echinodermata (2) Excretion by parapodia 79. Which of the following characters are common w.r.t. : arthropods, molluscs, echinodermata? Respiration by tube feet (1) Bilateral symmetry in adult animals Hemichordates (2) Notochord during embryonic development (3) Excretion by proboscis gland : (3) True coelom Respiration by gills (4) True coelom and internal fertilisation (4) Chordata : Excretion by flame cells 80. Which of the following is common feature of phylum Respiration by lungs Platyhelminthes, Aschelminthes, Annelida, Mollusca and echinoderm? (1) (1) (1) Triploblastic (2) (2) (2) True coelom (3) (3) (3) Bilateral symmetry (4) (4) (4) Tube within tube body plan 87. Malpighian tubules assist in osmoregulation and 81. Which of the following feature has played a major role in excretion. They are not present in the success of insects on land? (1) Apis (1) Unjointed appendages (2) Anopheles (2) Chitinous exoskeleton (3) Aplysia (3) Body divisions (4) Aedes (4) Open circulatory system 88. Which group of animals belong to the same phylum in the 82. Select the soft bodied organism with distinct mantle for given options? protection. (1) Ringworm, Pinworm, Tapeworm (1) Sea lily (2) Liver fluke, Tapeworm, Earthworm (2) Sea fan (3) Filarial worm, Hookworm, Roundworm (3) Sea urchin (4) Liver fluke, Bookworm, Ringworm (4) Sea hare 89. Which statement is correct about sponges without 96. Which of the following is incorrect for sea cucumber? exception? (1) Belongs to the phylum Echinodermata (1) They have calcareous spicules (2) Triploblastic and coelomate (2) They have high regenerative power (3) Possesses water canal system (3) They are found in marine water (4) Undergoes external fertilisation (4) They are radially symmetrical 97. Choose the odd one w.r.t. members of phylum Mollusca 90. Read the following statements. (1) Loligo a. Radula is a rasping organ present in echinoderms. b. Aschelminthes are dioecious. (2) Aplysia c. Echinoderms have a well organised excretory system. d. Molluscs possess tentacles. (3) Chaetopleura Select the option with only incorrect statements. (4) Antedon (1) a and b 98. Match the column I and column II and select the correct (2) b and c option. Column I Column II (3) a and c a. Euspongia (i) Nematocytes (4) a, c and d b. Pila (ii) Flame cells 91. Which of the following is a matching set of phylum and its c. Planaria (iii) Radula three examples? d. Meandrina (iv) Choanocytes Schistosoma, Ancylostoma, (1) Platyhelminthes (1) a(ii), b(iv), c(i), d(iii) Fasciola (2) Mollusca Octopus, Aplysia, Chaetopleura (2) a(ii), b(iv), c(iii), d(i) (3) Cnidaria Gorgonia, Meandrina, Taenia (3) a(iv), b(ii), c(iii), d(i) (4) Echinodermata Antedon, Ophiura, Sepia (4) a(iv), b(iii), c(ii), d(i) (1) (1) 99. Which is true for Spongilla? (2) (2) (1) Occurs exclusively in fresh water (3) (3) (2) Is a triploblastic poriferan (4) (4) (3) Has numerous oscula for entry of water 92. Heart like structure is seen for the first time in the phylum (4) Lacks flagellated collar cells in body (1) Aschelminthes 100.In contrast to echinoderms, most poriferans show (2) Annelida (1) Radial symmetry (3) Arthropoda (2) Presence of notochord (4) Mollusca (3) Presence of true coelom 93. Among the following organisms which one is a dioecious, oviparous and unsegmented animal? (4) Intracellular digestion (1) Butterfly 101.Select the taxon whose members live exclusively in marine water. (2) Leech (1) Annelida (3) Cuttlefish (2) Ctenophora (4) Toad (3) Arthropoda 94. Earthworm, Prawn and Pila resemble each other in/as (4) Mollusca (1) Presence of open vascular system 102.Both parapodia and setae are found in (2) They are classified in the same phylum (1) Pheretima (3) Presence of ventral, solid and double nerve cord (2) Nereis (4) They share similar respiratory organs (3) Hirudinaria 95. First triploblastic, bilaterally symmetrical, acoelomates are (4) Aplysia (1) Flat worms 103.A multicellular organism which uses cilia for locomotion is (2) Round worms (1) Sycon (3) Annelids (2) Paramecium (4) Arthropods (3) Pleurobrachia (4) Physalia 104.Which of the following have close blood vascular system? 111. Mark the correct match (1) Euspongia Organism Characteristic feature A. Euspongia Ciliated choanocytes (2) Devil fish B. Adamsia Stinging cells on tentacles (3) Sea anemone C. Pleurobrachia Exhibits metagenesis (4) Hydra D. Planaria Presence of hooks and suckers 105.Choose the incorrect match (1) A (1) Ascaris – Muscular pharynx and sexual dimorphism (2) B (2) Nereis – Parapodia and dioecious (3) C (3) Taenia – Radula and bioluminescence (4) D (4) Obelia – Metagenesis and cnidocytes 112.Alternation of generation between asexual and sexual 106.Osphradium in molluscs is phases of an organism like Obelia is termed as (1) Tangoreceptors (1) Metamorphosis (2) Metagenesis (2) Tactile receptors (3) Olfactory receptors (3) Metamerism (4) Chemoreceptors (4) Morphallaxis 107.Which of the following possess a hard exoskeleton 113.Find the odd one out w.r.t bioluminescence. formed of chitin? (1) Aurelia (1) Hydra (2) Ctenoplana (2) Obelia (3) Pleurobrachia (3) Aurelia (4) Planaria (4) Limulus 114.In which of the following arthropods, book lungs help in 108.High capacity of regeneration is observed in respiration? (1) All true coelomates (1) Prawn All animals where single opening serves as mouth (2) Scorpion (2) and anus (3) Locust (3) Some acoelomates (4) Butterfly All multicellular organisms when a single longitudinal 115.Basis of sexual dimorphism in Ascaris is (4) plane passing through centre can divide the body into two equal halves (1) Length of the organism 109.Read the characteristics given below (2) Pseudocoelom (a) Jointed appendages (3) Muscular pharynx (b) Chitinous exoskeleton (c) Parapodia (4) Posteriorly curved tail of female (d) Calcareous exoskeleton How many of these characteristics are found in organism 116.Which one of the following is correct about the given whose excretory structures are Malpighian tubules? structure 'A' and 'B' of cnidarians? (1) One (2) Three (3) Two (4) Four 110.An insect harmful to books among the following is (1) Lepisma A B (2) Loligo (3) Laccifer (1) Medusa (n) Polyp (2n) (4) Limulus (2) Polyp (2n) Medusa (2n) (3) Medusa (2n) Polyp (2n) (4) Polyp (n) Medusa (n) (1) (1) (2) (2) (3) (3) (4) (4) 117.Which of the following is correct for animals (A), (B), (C) 121.Consider the following four characteristics (A-D) and and (D)? select the option with correct statements w.r.t. phylum porifera A. Sponges are mostly marine and generally asymmetrical B. Primitive multicellular with cellular grade of body organization C. Ciliated choanocytes always line the spongocoel. D. Digestion intracellular and sexes are separate with sexual dimorphism (1) B and D (2) A and B (3) C and B (4) A and C 122.Which group of animals belong to the same phylum? (1) Pleurobrachia, Physalia, Planaria (A) (B) (C) (D) (2) Ascaris, Ancylostoma, Antedon (1) Walking legs : 3 pairs 2 pairs 4 pairs 5 pairs (3) Chaetopleura, Cucumaria, Culex Antenna : 2 pairs 2 pairs 1 pair 1 pair (4) Locusta, Limulus, Laccifer (2) Walking legs : 3 pairs 3 pairs 4 pairs 4 pairs 123.In which of the following, the genus name, its two Antenna : 1 pair 1 pair Absent 2 pairs characters and its taxon are correctly matched? (3) Walking legs : 3 pairs 3 pairs 4 pairs 5 pairs Antenna : 1 pair 1 pair Absent 2 pairs (4) Walking legs : 3 pairs 2 pairs 4 pairs 5 pairs Antenna : 1 pair 1 pair 1 pair 2 pairs (1) (1) (2) (2) (3) (3) (4) (4) 118.Which one of the following is the first phylum whose members are triploblastic with mesodermal tissue? (1) Platyhelminthes (2) Aschelminthes (3) Ctenophora (1) (1) (4) Annelida (2) (2) 119.Choose the odd one w.r.t. presence of general annelidian (3) (3) character (4) (4) (1) Triploblastic body (2) Pseudocoelom 124.Respiratory organs of Arthropods are (3) Metamerism (1) Book lungs, ctenidia and gills (4) Bilateral symmetry (2) Book gills, keber's organ and gills (3) Book lungs, gills and book gills 120.Bioluminescence i.e., the property of a living organism to emit light is shown by hermaphrodite animals called (4) Gill, book gills and metanephridia (1) Glow worms 125.Cephalopod mollusc have (2) Fireflies (1) Radial symmetry (3) Comb jellies (2) Close circulatory system (4) Jelly fishes (3) Pseudocoelom (4) Water vascular system 126.In sponges, choanocytes are A cells that line the 132.The photoreceptor units of compound eyes of arthropods B. Identify A and B. ¯¯¯¯¯¯¯ are ¯¯¯¯¯¯ (1) Ostia (1) A – Ciliated, B – Ostia (2) Ocelli (2) A – Flagellated, B – Osculum (3) Ommatidia (3) A – Ciliated, B – Spongocoel (4) Osphradia (4) A – Flagellated, B – Spongocoel 133.Which difference between chordate & non-chordate is 127.Select the incorrect feature w.r.t sea walnuts. wrong? (1) They are also called comb jellies Chordate Non-chordate They possess eight ciliated comb plates, which help A. Notochord present Absent (2) in locomotion B. C.N.S. is hollow Ventral, double, solid (3) They are monoecious and exhibit internal fertilisation C. Heart ventral Dorsal (4) They have tissue level of organisation D. Gut dorsal to nerve cord Ventral to nerve cord 128.Animals exhibiting diploblasty and presence of mouth on hypostome along with a central gastrovascular cavity are (1) (A) classified under (2) (B) (1) Porifera (3) (C) (2) Cnidaria (4) (D) (3) Platyhelminthes (4) Annelida 134.A : Heart of earthworm is neurogenic. R : Respiratory pigment, i.e., Erythrocruonin is dissolved 129.Choose the correct match w.r.t animal, their phylum and in blood plasma in earthworm. respective feature. Both Assertion & Reason are true and the reason is Animal Phylum Feature (1) the correct explanation of the assertion (1) Ctenoplana Coelenterata Bioluminescence Both Assertion & Reason are true but the reason is (2) not the correct explanation of the assertion (2) Hydra Ctenophora Metagenesis (3) Assertion is true statement but Reason is false (3) Ascaris Aschelminthes Muscular pharynx (4) Both Assertion and Reason are false statements (4) Chaetopleura Hemichordata Stomochord 135.Which amongst the following may not be regarded as an (1) (1) advancement of roundworms over flatworms? (2) (2) (1) Presence of pseudocoel (3) (3) (2) Presence of complete digestive tract (4) (4) (3) Presence of tube within tube plan Presence of bilateral symmetry and triploblastic 130.A feature/body form not present in Obelia is (4) condition (1) Hypostome (2) Medusa (3) Comb plates (4) Polyp 131.Identify the option with correct match Column-I Column-II a. Lepisma Tracheal tubes b. Dolphin Lungs c. Scorpion Book lungs d. Dentalium Feather-like gills (1) a and b only (2) a, b and c only (3) a, c and d only (4) a, b, c and d