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Question
Setae help in locomotion in earthworm but are not uniformly present in all the segments. They are present in ______.
Options
1st segment
Last segment
Clitellar segment
20th - 22nd segment
Solution
Setae help in locomotion in earthworm but are not uniformly present in all the segments. They are present in 20th - 22nd segment.
Explanation:
The locomotion in earthworms occurs by contracting their body to move forward with the help of the bristle-like structures called setae, which are found in the 20th - 22nd segment.
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