- 1(current)
Q. No.Which of the following is not a feature of Mollusca?
| I: | Bilateral symmetry |
| II: | Presence of a mantle |
| III: | Radula for feeding |
| IV: | Chitinous exoskeleton |
| 1. | Only I, II and III |
| 2. | Only IV |
| 3. | Only I and IV |
| 4. | Only II and III |
Subtopic: Â Phylum Mollusca |
 79%
Level 2: 60%+
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Consider the given statements:
The number of correct statements is:
| I: | Annelids are metamerically segmented animals with a true coelom. |
| II: | Arthropods are the most abundant group of animals characterised by the presence of jointed appendages. |
| III: | Molluscs have a soft body surrounded by an external calcareous shell. |
| IV: | Echinoderms possess a spiny skin. |
| V: | Hemichordates are fresh water animals. |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
Subtopic: Â Phylum Annelida |Â Phylum Arthropoda |Â Phylum Mollusca |Â Phylum Echinodermata |Â Phylum Hemichordata |
 73%
Level 2: 60%+
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Which of the following statements accurately describes the differences between Mollusca and Annelida?
| 1. | Mollusca are segmented, while Annelida are not |
| 2. | Mollusca have a coelom, while Annelida do not |
| 3. | Mollusca have an open circulatory system, while Annelida have a closed circulatory system |
| 4. | Mollusca are primarily terrestrial, while Annelida are aquatic |
Subtopic: Â Phylum Annelida |Â Phylum Mollusca |
 90%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Over two-thirds of all named species on earth are arthropods. |
| Statement II: | Mollusca is the second largest animal phylum. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Â Phylum Arthropoda |Â Phylum Mollusca |
 90%
Level 1: 80%+
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A radula is present in many members of the phylum:
| 1. | Mollusca | 2. | Arthropoda |
| 3. | Annelida | 4. | Echinodermata |
Subtopic: Â Phylum Mollusca |
 95%
Level 1: 80%+
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Match each item in Column-I with one in Column-II and select the best match from the codes given:
Codes:
| Column-I | Column-II | ||
| A. | Comb plates | P. | Cnidaria |
| B. | Metagenesis | Q. | Mollusca |
| C. | Canal system | R. | Sponges |
| D. | Radula | S. | Ctenophora |
| A | B | C | D | |
| 1. | S | P | R | Q |
| 2. | P | S | R | Q |
| 3. | P | S | Q | R |
| 4. | S | P | Q | R |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Mollusca |
 89%
Level 1: 80%+
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Platyhelminthes are (A), Aschelminthes are (B) and Molluscs are (C).
| A | B | C | |
| 1 | Pseudocoelomate | Acoelmate | Eucoelomate |
| 2 | Acoelmate | Pseudocoelomate | Acoelmate |
| 3 | Acoelmate | Pseudocoelomate | Eucoelomate |
| 4 | Acoelomate | Pseudocoelomate | Pseudocoelomate |
Subtopic: Â Phylum Ctenophora |Â Phylum Aschelminthes |Â Phylum Mollusca |Â Phylum Platyhelminthes |
 90%
Level 1: 80%+
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- 1(current)
Q. No.
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