Question

Why does body segmentation in Annelida known to be metameric segmentation?
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Answer 1

Answer:

The repetition of organs and tissues at intervals along the body of an animal, thus dividing the body into a linear series segments is called metameric segmentation. Annelids have this type of segmentation and it helps them in locomotion. Without metameric segmentation, annelids would struggle with movement across diverse environments.

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Answer 2

according to his theory the body part like coelem, blood vessel,nephridia muscle etc. will be repeatedely formed. in between them septa are formed. thus metamerism is derived which is seen in annelids.