Question

How does an earthworm move?
Short answer like a short define​

Answer 1

earthworms travel underground by the mean of waves of muscular contraction which alternately shorten and lengthen of the body.

Answer 2

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. Worms travel through underground tunnels or move on the soil surface by using their bristles as anchors, and pushing themselves forward or backward using strong stretching and contracting muscles.

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