Q148 / 199 · NEET 2008 (Mains) · Zoology

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to

A
Setae
Correct answer
B
Coelomic fluid
C
Blood
D
Gut peristalsis

Solution

Setae help in attachment, but turgidity and hydraulic skeleton is due to coelomic fluid.

Hence, the correct answer is option: 'B'.

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