MCQ
Which one occurs in mollouscs but not in echinoderms
- AFlame cells
- BMalpighian tubules
- ✓Kidney
- DNone of the above
✓
Answer
Correct option: C.
Kidney
c
(c)In mollusca, excretion occurs through paired sac like kidneys $ (or metanephridia) $ but in echinodermata kidneys are absent and excretion occurs partly by diffusion through body surface and partly by amoeboid coelomocytes.
(c)In mollusca, excretion occurs through paired sac like kidneys $ (or metanephridia) $ but in echinodermata kidneys are absent and excretion occurs partly by diffusion through body surface and partly by amoeboid coelomocytes.
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