Exclusively marine, radially symmetrical, and diploblastic organism is:
1. Pila
2. Nereis
3. Pleurobrachia
4. Asterias
Subtopic: Â Phylum Ctenophora |
 83%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.
Match List I with List II:
Choose the correct answer from the options given below:
1. A -II, B- IV, C-III, D-II
2. A -IV, B- II, C-III, D-I
3. A -III, B- IV, C-II, D-I
4. A -III, B- IV, C-I, D-II
| List I | List II |
| A. Bilaterally symmetrical, triploblastic acoelomate animal with flame cells | I. Limulus |
| B. Bilaterally symmetrical animal with calcareous shell and mantle cavity | II. Pleurobrachia |
| C. Radically symmetrical animal with ciliated comb plates and exclusively marine | III. Fasciola hepatica |
| D. Bilaterally symmetrical, triploblastic, coelomate animals with a chitinous exoskeleton | IV. Dentalium |
Choose the correct answer from the options given below:
1. A -II, B- IV, C-III, D-II
2. A -IV, B- II, C-III, D-I
3. A -III, B- IV, C-II, D-I
4. A -III, B- IV, C-I, D-II
Subtopic: Â Phylum Ctenophora |Â Phylum Arthropoda |Â Phylum Mollusca |
 89%
Level 1: 80%+
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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
1. Syconoid canal system
2. Water vascular system
3. Metamerism
4. Segmentation
Subtopic: Â Phylum Echinodermata |
 91%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
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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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 |
| 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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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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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 |
 67%
Level 2: 60%+
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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 |
 66%
Level 2: 60%+
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