Q. No.The enzyme luciferase is associated with:
1. Eutely
2. Cryptobiosis
3. Bioluminescence
4. Diapause
1. Eutely
2. Cryptobiosis
3. Bioluminescence
4. Diapause
Consider the two statements:
| I: | Metamerism in animals is same as segmentation. |
| II: | Both result in serial repetition of unit subdivisions of ectoderm and mesoderm products. |
| 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. | Only I is correct |
| 4. | Both I and II are incorrect |
Bilaharzia is caused by Schistosoma that belongs to:
1. Protozoans
2. Nematodes
3. Arthropods
4. Flat worms
Which of the following is unique to the molluscs and has no equivalent in any other animal?
| 1. | Haemocoel | 2. | Hemocyanin |
| 3. | Radula | 4. | Metamerism |
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Identify the correct statements regarding arthropods:
| I: | All arthropods use internal fertilization |
| II: | All arthropods lay eggs |
| III: | All arthropods' embryos are segmented |
| 1. | Only II | 2. | Only III |
| 3. | Only I and II | 4. | None |
The second intermediate host required by Clonorchis sinensis is:
| 1. | A snail | 2. | A fish |
| 3. | A crustacean | 4. | A coral |
The type of coelom seen in echinoderms and chordates is the:
1. Psuedocoelom
2. Enterocoelom
3. Schizocoelom
4. Haemocoel
Most of the sponge's ingestion is carried out by:
1. Archaeocyte
2. Choanocyte
3. Collencyte
4. Sclerocyte
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Consider the two statements:
| I: | The development of an AP axis in animals with bilateral symmetry is important in locomotion. |
| II: | Bilateral symmetry gives the body an intrinsic direction and allows streamlining to reduce drag. |
| 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. | Only I is correct |
| 4. | Both I and II are incorrect |
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