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Into how many segments is the body of a leech metamerically divided?
A26 segments
B33 segments
C17 segments
D11 segments
Answer & Solution
Correct answer: B. 33 segments
1. Metamerism is the segmentation of the body.
2. The leech body is metamerically divided into 33 segments.
3. So the correct count is 33.
4. The number 26 refers to the segment bearing the anus, not the total, so it is the trap.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 13 Structural Organisation of Animals "External Morphology", p.195_
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