how does a earthworm moves
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earthworm body is divided into two segments. an earthworm moves by using two different sets of muscles to lengthen and push itself forward again.
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Earthworm does not have bones. It has muscles. During the movement, earthworm first extends front part of the body keeping the rear portion fixed to the ground. Then it fixes the front and releases the rear end. It then shortens the body and pulls the rear end forward. In this way by repeating such muscular expansions and contractions earthworm moves.
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