Question

how is movement brought about in the following animals cockroach earthworm ​

Answer 1

Answer:

Earthworms move by alternate extension and contraction of the body using muscles. ... The body and legs of cockroaches have hard coverings forming an outer skeleton. The muscles of the breast connected with three pairs of legs and two pairs of wings help the cockroach to walk and fly.

Answer 2

Explanation

Crockroges:cockroach’s body is covered with a hard outer skeleton. Cockroaches have a pair of antennae that help them smell things. They also have a pair of cerci that can detect the slightest of movements and warn them of any danger from behind.

Earthworm:Earthworms do not have bones. Their body issegmented, forms rings all over. The earthworm stretch the one part of its body contraction the other and this alternative stretching and contracting movement make its body move forward.