Question

2. Briefly describe how movement is brought about in (a) earthworms, (b) snails, and (c)
examples, dilte
cockroaches.
3. Explain how a fish is suited to move in water.
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Answer 1

Answer:

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Explanation:

2.Earthwormss move with help of tiny, stiff hair-like projections called bristles. Snail moves with the help of single muscular foot. The rhythmic contractions and relaxations of muscular foot brings about pulling action in the body. A cockroach moves its legs with the help of muscles near the limbs.

3.Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side. This motion moves them forward through the water. Fish use their back fin, called the caudal fin, to help push them through the water.