CSS :: Phylum Echinodermata
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| 1. |
Spines are found on the body surface of: |
| A. |
Sycon |
B. |
Cockroach |
| C. |
House-fly |
D. |
Star-fish |
Answer: Option D
Explanation:
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| 2. |
Animals with spiny skin are called: |
| A. |
Helminthss |
B. |
Moluscs |
| C. |
Arthropods |
D. |
Echinoderms |
Answer: Option D
Explanation:
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| 3. |
Star-fish belongs to phylum: |
| A. |
Cnidaria |
B. |
Nematoda |
| C. |
Mollusca |
D. |
Echinoderms |
Answer: Option D
Explanation:
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| 4. |
Which of these groups has exclusively marine animals: |
| A. |
Mollusca |
B. |
Cnidaria |
| C. |
Echinodermata |
D. |
None of these |
Answer: Option C
Explanation:
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| 5. |
Which of these groups has no parasitic forms: |
| A. |
Echinodermata |
B. |
Nematoda |
| C. |
Protozoa |
D. |
Arthropoda |
Answer: Option A
Explanation:
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| 6. |
Adult echinoderms are: |
| A. |
Radially symmetrical |
B. |
Bilaterally symmetrical |
| C. |
Biradially symmetrical |
D. |
None of these |
Answer: Option A
Explanation:
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| 7. |
Larvae of echnoderms are: |
| A. |
Radially symmetrical |
B. |
Bilaterally symmetrical |
| C. |
Biradially symmetrical |
D. |
Asymmetrical |
Answer: Option A
Explanation:
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| 8. |
Larva of star-fish is: |
| A. |
Asymmetrical |
B. |
Bilaterally symmetrical |
| C. |
Irregular |
D. |
None of these |
Answer: Option B
Explanation:
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| 9. |
In which of these the sexual reproduction takes place without copulation: |
| A. |
Cockroach |
B. |
Earthworm |
| C. |
Star-fish |
D. |
Ascaris |
Answer: Option B
Explanation:
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| 10. |
Fertilization is external and occurring in sea water in: |
| A. |
Star-fish |
B. |
Mosquito |
| C. |
Earthworm |
D. |
None of these |
Answer: Option A
Explanation:
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