A. Answer in Detail
1. How is movement brought about in the following animals?
(a) Cockroach
(b) Earthworm
(e) Bird
(c) Snail
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Answer:
Answer: Earthworms move by alternate extension and contraction of the body using muscles. ... ... The muscles of the breast connected with three pairs of legs and two pairs of wings help the cockroach to walk and fly.
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