Asterias lacks specific locomotory, respiratory, and food-capturing organs but it can carry these functions through a unique system of:
1. Syconoid canal system
2. Water vascular system
3. Metamerism
4. Segmentation
Subtopic: Â Phylum Echinodermata |
 91%
Level 1: 80%+
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-II, B-I, C-IV, D-III
4. A-I, B-II, C-III, D-IV
| List I | List II |
| A. Coelomates | I. Aschelminthes |
| B. Pseudocoelomates | II. Platyhelminthes |
| C. Acoelomates | III. Annelids |
| D. Diploblastic | IV. Coelenterates |
1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-II, B-I, C-IV, D-III
4. A-I, B-II, C-III, D-IV
Subtopic: Â Basis of Classification |
 86%
Level 1: 80%+
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NEET 2026 - Target Batch - Vital
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In contrast to Aves, mammals have:
Choose the correct answer from the options given below:
| A. | synsacrum |
| B. | corpus callosum |
| C. | mammary gland without teats |
| D. | ear pinna |
| E. | pneumatic bones |
Choose the correct answer from the options given below:
| 1. | B and D only |
| 2. | A, B and D only |
| 3. | C, D and E only |
| 4. | A and E only |
Subtopic: Â Study of Aves & Mammals |
 51%
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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Which of the following animals has three chambered heart?
| 1. | Scoliodon | 2. | Hippocampus |
| 3. | Chelone | 4. | Pteropus |
Subtopic: Â Study of Reptilia |
 79%
Level 2: 60%+
NEET - 2022
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NEET 2026 - Target Batch - Vital
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Select the incorrect statements with respect to Cyclostomes:
Choose the most appropriate answer from the options given below:
1. (a) and (b) only
2. (b) and (c) only
3. (b) and (d) only
4. (a) and (d) only
| (a) | They lack scales and paired fins. |
| (b) | They have circular mouth with jaws. |
| (c) | They bear 6-15 pairs of gills. |
| (d) | They migrate to deep sea for spawning. |
1. (a) and (b) only
2. (b) and (c) only
3. (b) and (d) only
4. (a) and (d) only
Subtopic: Â Super Class Pisces & its General Characteristics |
 60%
Level 2: 60%+
NEET - 2022
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A nerve-net, a network of neurons, makes up the neural organization in:
| 1. Sponges | 2. Hydra |
| 3. Planaria | 4. Earthworm |
Subtopic: Â Phylum Coelenterata |
 66%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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What would be true for an animal that exhibits the kind of body symmetry shown in the given diagram?
| I: | This is seen in sponges, cnidarians, ctenophores and larval echinoderms. |
| II: | This type of body symmetry is generally seen in animals which move actively in their environment. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Â Basis of Classification |
 54%
Level 3: 35%-60%
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Which of the following will be true for both animals with body plan A and B as shown in the given figure?
| 1. | Body will be bilaterally symmetrical |
| 2. | Muscle will be well developed |
| 3. | A true coelom will be present |
| 4. | Both will have cells organized into tissues and heterotrophic nutrition |
Subtopic: Â Basis of Classification |
 65%
Level 2: 60%+
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Given below is the schematic representation of the life cycle of Obelia, a Cnidarian. Consider the given two statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. I is incorrect and II is correct
| I: | This type of life cycle is called as metagenesis and it is a sort of alternation of generation. |
| II: | Polyps in the life cycle of cnidarians are haploid and medusae are diploid. |
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. I is incorrect and II is correct
Subtopic: Â Phylum Coelenterata |
 59%
Level 3: 35%-60%
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Consider the given two statements regarding the water flow through the bodies of sponges as shown in the diagram.
1. I is correct and II is incorrect.
2. I is incorrect and II is correct.
3. I is correct and II is also correct.
4. I is incorrect and II is also incorrect.
| I: | Most sponges work rather like chimneys: they take in water at the bottom and eject it from the osculum ("little mouth") at the top. |
| II: | The inner surface is covered with choanocytes where the wave-like motion of the whip-like flagella drives water through the sponge's body. |
2. I is incorrect and II is correct.
3. I is correct and II is also correct.
4. I is incorrect and II is also incorrect.
Subtopic: Â Phylum Porifera |
 72%
Level 2: 60%+
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