Question

4.
What kind of movement does earthworm show?
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Answer 1

Answer:

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 soil around it. To move forward, the worm uses its setae to anchor the front of its body and contracts the longitudinal muscles to shorten its body.

Answer 2

Answer:

Earthworms have groups of bristles on each segment of the body that move in and out to grip surfaces as they stretch and contract their muscles to push themselves forward or backward. They tend to move forward.