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STD 11 - 4. Animal kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 4. Animal kingdom1 Mark
MCQ
Which one occurs in mollouscs but not in echinoderms
  • A
    Flame cells
  • B
    Malpighian tubules
  • ✓
    Kidney
  • D
    None 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.

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