Why earth worms find it to difficult to move on smooth surfaces
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Earthworms have bristles or setae in groups around or under their body. The bristles, paired in groups on each segment, can be moved in and out to grip the ground or the walls of a burrow. ... Earthworm is unable to walk on glass surface because it is a very smooth surface and there is a lack of grip on glass surface.
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Earthworms have bristles or setae in groups around or under their body. The bristles, paired in groups on each segment, can be moved in and out to grip the ground or the walls of a burrow. ... Earthworm is unable to walk on glass surface because it is a very smooth surface and there is a lack of grip on glass surface.
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