how does the earth worm fixes parts of its body to the ground
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During movement, the earthworm first extends the front part of the body, keeping the rear portion fixed to theground. ... Under its body, it has a large number of tiny bristles (hair like structures) projecting out. The bristlesare connected with muscles. The bristles help to get a good grip on theground.
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Earthworms' bodies are made up of ringlike segments called annuli. These segments are covered in setae, or small bristles, which the wormuses to move and burrow. ... As they burrow, they consume soil, extracting nutrients from decomposing organic matter like leaves and roots
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