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Question

Which of the following segmentation occurs in earthworm?
  1. Polymeric segmentation
  2. Bisegmentation
  3. Metameric segmentation
  4. Psuedosegmentation

A
Bisegmentation
B
Metameric segmentation
C
Psuedosegmentation
D
Polymeric segmentation
Solution
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Annelids are segmented worms. The body of an earthworm is divided into almost 100-120 segments. These segments are similar to each other and are present along the longitudinal axis of the body. Each segment is known as the metamer and the segmentation is known as metameric segmentation. So, the correct answer is option A.

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