- 1(current)
Q. No.Subtopic: Â Basis of Classification |
 74%
Level 2: 60%+
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The figure shows cross-section of the body of an animal. This animal:
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| I: | lacks a coelom |
| II: | is triploblastic |
| III: | is expected to have bilateral symmetry |
| IV: | is expected to be dorso-ventrally flattened |
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic: Â Basis of Classification |
 56%
Level 3: 35%-60%
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Animals can be categorised on the basis of their symmetry. Which of the following statements are correct?
| I: | Sponges are mostly asymmetrical. |
| II: | Coelenterates, ctenophores and adult echinoderms have radial symmetry. |
| III: | Annelids and arthropods exhibit bilateral symmetry. |
| 1. | Only I and II |
| 2. | Only I and III |
| 3. | Only II and III |
| 4. | I, II and III |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |Â Phylum Arthropoda |Â Basis of Classification |
 90%
Level 1: 80%+
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How many of the given statements regarding Kingdom Animalia are true?
1. 1
2. 2
3. 3
4. 4
| I: | All members of Animalia are multicellular. |
| II: | All members with triploblastic organisation have bilateral symmetry as adults. |
| III: | Sponges are mostly radially symmetrical. |
| IV: | An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm in triplobalstic organisms. |
1. 1
2. 2
3. 3
4. 4
Subtopic: Â Phylum Porifera |Â Basis of Classification |
 56%
Level 3: 35%-60%
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Consider the given two statements:
| Assertion (A): | Roundworms (phylum Nematoda) are pseudocoelomates. |
| Reason (R): | Pseudocoelom provides protection for internal organs and facilitates movement of nutrients. |
| 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. | (A) is False but (R) is True. |
Subtopic: Â Basis of Classification |
Level 3: 35%-60%
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The type of circulatory system in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it is found in all of the following except:
| 1. | Arthropods | 2. | Hemichordates |
| 3. | Most molluscs | 4. | Annelids |
Subtopic: Â Basis of Classification |
 67%
Level 2: 60%+
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Choose the correct match showing level of organisation (given in Column-I) with examples of the animal (given in Column-II):
1. i-B, ii-C, iii-D, and iv-A
2. i-B, ii-D, iii-C, and iv-A
3. i-D, ii-A, iii-B, and iv-C
4. i-A, ii-D, iii-C, and iv-B
| Column-I | Column-II | ||
| A. | Organ level | (i) | Pheretima |
| B. | Cellular aggregate | (ii) | Fasciola |
| C. | Tissue level | (iii) | Spongilla |
| D. | Organ system level | (iv) | Obelia |
1. i-B, ii-C, iii-D, and iv-A
2. i-B, ii-D, iii-C, and iv-A
3. i-D, ii-A, iii-B, and iv-C
4. i-A, ii-D, iii-C, and iv-B
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |Â Basis of Classification |
 92%
Level 1: 80%+
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Which statement about circulatory systems is correct?
| 1. | All vertebrates have an open circulatory system. |
| 2. | Invertebrates have a closed circulatory system, while vertebrates have an open system. |
| 3. | Mollusks and arthropods typically exhibit a closed circulatory system. |
| 4. | Mammals have a closed circulatory system, while insects have an open system. |
Subtopic: Â Phylum Chordata |Â Basis of Classification |
 90%
Level 1: 80%+
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