- 1(current)
Q. No.Identify the correct statements regarding arthropods:
| I: | All arthropods use internal fertilization |
| II: | All arthropods lay eggs |
| III: | All arthropods' embryos are segmented |
| 1. | Only II | 2. | Only III |
| 3. | Only I and II | 4. | None |
Subtopic: Â Phylum Arthropoda |
Level 3: 35%-60%
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The exoskeleton of arthropods, fungal cell wall and radula of molluscs is primarily composed of:
| 1. | Calcium carbonate | 2. | Chitin |
| 3. | Collagen | 4. | Silica |
Subtopic: Â Phylum Arthropoda |Â Phylum Mollusca |
 88%
Level 1: 80%+
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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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Identify the incorrectly matched pair:
| 1. | Hemichordates | Worm like with proboscis, collar and trunk |
| 2. | Mollusca | External skeleton of shell usually present |
| 3. | Porifera | Body with pores and canals in walls |
| 4. | Arthropoda | Exoskeleton of cellulose and jointed appendages |
Subtopic: Â Phylum Arthropoda |
 85%
Level 1: 80%+
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Consider the given statements:
| Statement I: | Arthropoda is the largest phylum of Animalia. |
| Statement II: | Mollusca is the second largest animal phylum. |
| Statement III: | Ctenophora is the third largest animal phylum. |
| 1. | Statement I is correct; Statement II is correct; Statement III is incorrect |
| 2. | Statement I is correct; Statement II is correct; Statement III is correct |
| 3. | Statement I is correct; Statement II is incorrect; Statement III is incorrect |
| 4. | Statement I is incorrect; Statement II is correct; Statement III is incorrect |
Subtopic: Â Phylum Ctenophora |Â Phylum Arthropoda |Â Phylum Mollusca |
 84%
Level 1: 80%+
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- 1(current)
Q. No.
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