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Q. No.How many of the given statements are correct for cyclostomes?
I:
All living members are ectoparasites on some fishes.
II:
They have an elongated body bearing 6-15 pairs of gill slits for respiration.
III:
They have a sucking and circular mouth without jaws.
IV:
Their body has scales and paired fins.
V:
Circulation is of open type.
VI:
Cyclostomes are fresh water animals but migrate for spawning to marine water.
1. 3
2. 4
3. 5
4. 6
Subtopic: Phylum Chordata |
52%
Level 3: 35%-60%
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Read the following statements carefully and choose the option with only incorrect statements.
1. (a) and (b)
2. (b) and (c)
3. (a), (b) and (c)
4. (a) and (d)
| a. | All multicellular animals exhibit the same pattern of organisation of cells. |
| b. | Organ level of organisation is exhibited by members of Platyhelminthes and other higher phyla where tissues are grouped together to form organs. |
| c. | Organ systems in different groups of animals exhibit various patterns of complexities. |
| d. | In all multicellular animals which have organ level of body organisation, a complete digestive system has two opening, mouth and anus. |
1. (a) and (b)
2. (b) and (c)
3. (a), (b) and (c)
4. (a) and (d)
Subtopic: Basis of Classification |
53%
Level 3: 35%-60%
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Consider the given two statements.
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
| Statement I: | The only vertebrates with jointed appendages are the insects. |
| Statement II: | The only invertebrates capable of flight are the insects. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Phylum Arthropoda |
52%
Level 3: 35%-60%
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Cnidarians, Ctenophores and Echinoderms resemble each other in:
1. Only I and II are correct
2. I, II and III are incorrect
3. Only I is correct
4. I, II and III are correct
| I: | having radial symmetry in adults and larvae |
| II: | having three germ layers |
| III: | lacking a coelom |
1. Only I and II are correct
2. I, II and III are incorrect
3. Only I is correct
4. I, II and III are correct
Subtopic: Basis of Classification:I | Phylum Aschelminthes |
Level 3: 35%-60%
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Chondrichthyes and Mammals:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | do not belong to the same class but belong to the same super-class. |
| II: | are placed under the same division in sub-phylum vertebrata. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
52%
Level 3: 35%-60%
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | Hemichordata was earlier considered as a sub-phylum under phylum Chordata but now it is placed as a separate phylum under non-chordata. |
| Reason (R): | Stomochord of hemichordates and notochord of chordates are homologous structures. |
| 1. | (A) is True but (R) is False. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Phylum Hemichordata |
Level 3: 35%-60%
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The number of animals having bilateral symmetry and a true coelom from the list given in the box will be:
1. 4
2. 5
3. 6
4. 7
| Fasciola, Pila, Chaetopleura, Ancylostoma, Saccoglossus, Meandrina, Hirudinaria, Labeo, Ichthyophis |
1. 4
2. 5
3. 6
4. 7
Subtopic: Basis of Classification |
Level 3: 35%-60%
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How many of the given statements regarding members of Porifera are correct?
1. 2
2. 3
3. 4
4. 5
| I: | They are exclusively marine. |
| II: | They have cellular level of organisation. |
| III: | They have a water vascular system with tube feet. |
| IV: | Digestion is intracellular. |
| V: | Fertilisation is external and development is direct. |
2. 3
3. 4
4. 5
Subtopic: Phylum Porifera |
57%
Level 3: 35%-60%
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I. | Cartilaginous fishes have cycloid or ctenoid scales. |
| II. | An air bladder is present in bony fishes. |
| III. | Amphibians have three-chambered heart. |
| IV. | Reptiles have dermal scales. |
| V. | Birds are warm-blooded. |
2. 3
3. 4
4. 5
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Study of Amphibians | Study of Reptilia | Study of Aves & Mammals |
Level 3: 35%-60%
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Consider the given two statements:
| Assertion (A): | Echinoderms have a water vascular system. |
| Reason (R): | The water vascular system is used for locomotion, capturing food, and respiration. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Phylum Echinodermata |
63%
Level 2: 60%+
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