CSS :: Phylum Echinodermata
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21. |
Endoskeleton of calcareous plates is found in: |
A. |
Star-fish |
B. |
Hourse-fly |
C. |
Pila |
D. |
Cockroach |
Answer: Option A
Explanation:
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22. |
Ring-canal is found in the: |
A. |
Digestive system of star-fish |
B. |
Respiratory system of star-fish |
C. |
Water vascular system of star-fish |
D. |
None of these |
Answer: Option C
Explanation:
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23. |
Ring-canal is found in: |
A. |
Cockroach |
B. |
Sycon |
C. |
Star-fish |
D. |
Metridium |
Answer: Option C
Explanation:
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24. |
Leathery skin is found in: |
A. |
Start-fish |
B. |
Sea-cucumber |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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25. |
A tube foot in starfish is made up of: |
A. |
Sucker |
B. |
Ampulla |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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26. |
A stone-canal is found in the star-fish is the part of its: |
A. |
Digestive system |
B. |
Ambulacral system |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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27. |
Madreporite in start-fish is the opening of: |
A. |
Digestive system |
B. |
Water vascular system |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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28. |
Sea-lillies are found in the group: |
A. |
Mollusca |
B. |
Echinodermata |
C. |
Arthropoda |
D. |
Annelida |
Answer: Option B
Explanation:
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29. |
Feather-stars and snake-stars/brittle stars are members of: |
A. |
Echinodermata |
B. |
Arthropoda |
C. |
Mollusca |
D. |
None of these |
Answer: Option A
Explanation:
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