How does an earthworm move on the ground?
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The earthworm's body is divided into segments. Each segment has a number of setae or very small bristles that earthworms use to help them grip the soil as they move. An earthworm moves by using two different sets of muscles. ... When the circular muscles contract, the earthworm stretches, becoming longer and thinner
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An earthworm moves using circular and longitudinal muscles, as well as bristles called setae. The earthworm can push the setae out of its body to grab the soilaround it. To move forward, theworm uses its setae to anchor the front of its body and contracts the longitudinal muscles to shorten its body.
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