The movement in earthworm is called peristalsis.During movement the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground.Then,it fixes the front end and releases the rare end.It then shortens the body and pulls the rare end forward.This makes it move by a small distance. Thus the earthworm moves by repeating such muscle expansion and contraction.
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An earthworm moves by crawling, produced by the alternate contraction and relaxation of muscles of its body wall. The contraction of muscles makes the body short and thick, whereas relaxation of muscles makes the body long and narrow. The bristle-like projections called setae provide grip to the earthworm.
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EARTH WORM
the body of earth worm is made up many rings end to end. an earthworm does not have bones. it has muscles which help to extend and shorten the body durning movement, the earthworm first extends the front part of the body,keeping the rear portion fixed to the ground. then it fixes the front end and release the rear end. it then shortens the body and pulls the rear end forward. this makes it moves forward by a small distance.reoeating such muscles expansions and contractions, tje earthworm can move through soil. its body secretes aslimy substance to help movement.
Regards
the body of earth worm is made up many rings end to end. an earthworm does not have bones. it has muscles which help to extend and shorten the body durning movement, the earthworm first extends the front part of the body,keeping the rear portion fixed to the ground. then it fixes the front end and release the rear end. it then shortens the body and pulls the rear end forward. this makes it moves forward by a small distance.reoeating such muscles expansions and contractions, tje earthworm can move through soil. its body secretes aslimy substance to help movement.
Regards
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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 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.
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peristalsis
The movement in earthworm is called peristalsis. During movement the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground. Then,it fixes the front end and releases the rare end.It then shortens the body and pulls the rare end forward. This makes it move by a small distance.
The movement in earthworm is called peristalsis. During movement the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground. Then,it fixes the front end and releases the rare end.It then shortens the body and pulls the rare end forward. This makes it move by a small distance.
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Earthworms?travel?underground by the?means?of waves of muscular contractions which alternately shorten and lengthen the body (peristalsis). The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. It is called expansion and contraction
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The movement in earthworm is called peristalsis.During movement the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground.Then,it fixes the front end and releases the rare end.It then shortens the body and pulls the rare end forward.This makes it move by a small distance. Thus the earthworm moves by repeating such muscle expansion and contraction.
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