Question

Q12. The Fish which swims by 2 points
repeated contracting its body
​

Answer 1

Answer:

Fish have a streamlined body and a tail which allows the fish to swim well. ... Fish have a sense organ called the lateral line which is used to detect movement and vibration in the surrounding water

Answer 2

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The anatomy of fish is often shaped by the physical characteristics of water, the medium in which fish live. Water is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs more light than air does.

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