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Q. No.In contrast to Aves, mammals have:
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: Study of Aves & Mammals |
50%
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Which of the following animals has three chambered heart?
| 1. | Scoliodon | 2. | Hippocampus |
| 3. | Chelone | 4. | Pteropus |
Subtopic: Study of Reptilia |
76%
From NCERT
NEET - 2022
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Select the incorrect statements with respect to Cyclostomes:
(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.
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.
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
Subtopic: Super Class Pisces & its General Characteristics |
57%
From NCERT
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: Phylum Coelenterata |
66%
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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: Basis of Classification |
54%
From NCERT
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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: Basis of Classification |
66%
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Given below is the schematic representation of the life cycle of Obelia, a cindarian. 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: Phylum Coelenterata |
58%
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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: Phylum Porifera |
71%
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The following structure is most likely:
1. An attachment organ at the anterior end of tapeworms.
2. Sensory apparatus at the anterior end of nematodes.
3. The multiple compound eyes seen in aquatic helminths.
4. Food storage organ in parasitic platyhelminths.
1. An attachment organ at the anterior end of tapeworms.
2. Sensory apparatus at the anterior end of nematodes.
3. The multiple compound eyes seen in aquatic helminths.
4. Food storage organ in parasitic platyhelminths.
Subtopic: Phylum Ctenophora & Platyhelminthes |
75%
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The diagram shows an organism with the following features:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
| 1. A sponge | 2. A Cnidarian |
| 3. A Ctenophore | 4. A flatworm |
Subtopic: Phylum Ctenophora & Platyhelminthes |
86%
From NCERT
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