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Q. No.Which of the following characteristics is used as a basis for the classification of animals into different phyla?
1. Presence of feathers
2. Mode of reproduction
3. Type of respiratory system
4. Body plan and symmetry
Subtopic: Basis of Classification |
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Consider the given two statements:
| Assertion (A): | Echinoderms are exclusively marine animals. |
| Reason (R): | Echinoderms have a water vascular system that functions in locomotion, feeding, 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. | (A) is False but (R) is True. |
Subtopic: Phylum Echinodermata |
77%
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Consider the given two statements:
| Assertion (A): | Cnidarians have a body plan based on a gastrovascular cavity. |
| Reason (R): | Cnidarians are diploblastic animals. |
| 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: Phylum Coelenterata |
66%
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Consider the given two statements:
| Assertion (A): | The swim bladder is an essential organ for bony fishes. |
| Reason (R): | It allows them to maintain buoyancy without expending energy. |
| 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: Comparative study of Cartilagenous & Bony Fishes |
93%
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Insects belong to the phylum Arthropoda. Their exoskeleton is primarily composed of:
1. Calcium carbonate
2. Chitin
3. Silica
4. Keratin
1. Calcium carbonate
2. Chitin
3. Silica
4. Keratin
Subtopic: Phylum Arthropoda |
94%
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Which of the following statements is incorrect about the phylum Arthropoda?
| 1. | Arthropods have an open circulatory system. |
| 2. | Arthropods exhibit bilateral symmetry. |
| 3. | All arthropods possess jointed appendages. |
| 4. | Arthropods possess a segmented body plan with a pseudocoelom. |
Subtopic: Phylum Arthropoda |
95%
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Match each item in column I with one in column II and select the correct match from the codes given below
Codes
| Column I | Column II | ||
| A. | Sycon | P. | Scypha |
| B. | Spongilla | Q. | Fresh water sponge |
| C. | Euspongia | R. | Both sponge |
Codes
| A | B | C | |
| 1. | P | Q | R |
| 2. | R | Q | P |
| 3. | P | R | Q |
| 4. | Q | P | R |
Subtopic: Phylum Porifera |
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Pleurobrachia and Ctenoplana belong to:
1. Porifera
2. Cnidaria
3. Ctenophora
4. Platyhelminthes
1. Porifera
2. Cnidaria
3. Ctenophora
4. Platyhelminthes
Subtopic: Phylum Ctenophora & Platyhelminthes |
92%
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Fasciola is
1. a nematode
2. liver fluke
3. blood sucking leech
4. a model organism to study genetics
1. a nematode
2. liver fluke
3. blood sucking leech
4. a model organism to study genetics
Subtopic: Phylum Ctenophora & Platyhelminthes |
87%
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In roundworms:
| Statement I: | Males are diploblastic; females are triploblastic |
| Statement II: | Generally, males are longer than females |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Phylum Aschelminthes |
83%
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