4. Earthworm: The body of a mature earthworm seems to be made of many rings joined end to end. From the paler under surface of the body, a large number of minute bristles project out. The bristles are connected with muscles at their bases. The bristles help to get a good grip on the ground. There’are muscles in the body wall which help to extend and shorten the body. During movement, the earthworm first extends the front part of body keeping the rear fixed to the ground. Then it fixes the front end and releases the rear end (Fig. 8.26). Thereafter, it shortens the body and pulls the rear end forward. The earthworm follows this process repeatedly to move ahead. On a slippery surface, its movement is affected due to the loose grip on the surface.
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my friend this is totally about the earthworm you have been describe what is the question you can ask
this is a given description about the earthworm earthworm works and how it looks about the habitat of the earth
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