Question

How does the streamline body of the fish help it in movement?

Answer 1

Answer:

Fish with streamlined bodies and a stiff, crescent-shaped caudal fin or tail, tend to move rapidly through the water by swishing their tail from side to side. This action propels the fish much like sculling (rowing a boat with an oar) propels a boat. The caudal fin or tail is not the only fin a fish uses to swim.

Answer 2

• Streamlining your body reduces the friction of movement to a minimum thus decreasing overall drag.
• For fishes having a streamlined body that is smooth helps save energy it would otherwise have to expend swimming.

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