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Question

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

A
1st segment
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B
last segment
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C
clitellar segment
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D
20th-22nd segment
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Solution

The correct option is D 20th-22nd segment
In each body 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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