Arms are absent in - Vidyadip

MCQ

Arms are absent in

A
Sea urchin
B
Sea cucumber
✓
Both ($a$) and ($b$)
D
None of these

✓

Answer

Correct option: C.

Both ($a$) and ($b$)

c
Arms are absent in the class-Echinoidea (e.g., sea urchins and sand dollars) and holothuroidea (e.g., sea cucumbers).

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