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Setae help in locomotion in earthworm bu...

Setae help in locomotion in earthworm but are not uniformly present in all the segments. They are present in

A

`1^(st)` segment

B

last segment

C

Clitellar segment

D

`20^(th)-22^(nd)` segment

Text Solution

Verified by Experts

The correct Answer is:
D
In each by segment of earthworm, except the first, last and clitellum, there are rows of setae embedded in the epidermal pits in the middle of each segment.
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