Question

Explain how is segmentation related to the development of a brain in earthworm?

Answer 1

The nervous system of the earthworm is distributed through the segmented body, along a nerve core, which lends support to the claim that earthworms have no cephalization; however, one particular part of this nervous system, an enlarged ganglion, does act as a simple brain, and it is located in the anterior portion of the earthworm’s anatomy.

Answer 2

Segmentation affects the development of an earthworm because this developmental process involves the formation of nerve tissues in annelids.

What is segmentation?

Segmentation is a process of development by which certain animals such as annelids developed different body parts in small segments.

• The brain in earthworms is an enlarged ganglion found in the anterior end of the body.

In conclusion, segmentation affects the development of an earthworm because it involves the formation of nerve tissues in annelids.

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