This is the first 1,000 characters of 431 words (1.72 pages) in the essay titled Earthworms
Earthworms are classified as Annelida. Annelida mean little rings which refers to the many segments in their body.
The structure of an earthworm’s body is made up of more than one hundred segments separated by partitions that divide the coelum. All segments are identical except by the anterior and posterior ends. The anterior segments reflect the cephalization that is an adaption of burrowing. The head of the earthworm contains the sense organs. The muscle lines that make up the interior body wall are circular and longitudinal. Earthworms move by anchoring some segments by their setae and contracts the circular muscles in front of those segments, producing fluid pressure in the anterior coelom cavities. The anterior setae grip the ground, the longitudinal muscles contract pulling the posterior along.
Earthworms burrow and feed on soil and organic matter at the same time. They digest the organic matter and eliminate wastes and undigested ma...
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