What is the significance of the belt on the body of the earthworm?

A belt of light color on the body of an earthworm appears during the fall, when it is necessary to give life to future offspring. Earthworms are hermaphrodites and have both female and male cells in their bodies. Since the genetically diverse species is more resistant to environmental conditions, the two individuals approach each other in belts and exchange spermatozoa. After the girdle goes down the body of the worm, merging with the female cells, and the cocoon leaves the body deep in the ground. More earthworms will appear in the spring.

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