Question

What is metameric segmentation?

Answer 1

Segmentation:

It is the division of an animal's body into linear series of similar segments (metameres) by the repetition of organs and tissues at intervals along its body.

Metameric segmentation:

1. It is an internal, mesodermal phenomenon.
2. The basic segmental divisions are the body musculature and the coelom.
3. The nerves, blood arteries, and excretory organs are all segmented as a result of this internal segmentation.
4. Example - Annelida