Some animals living in water have streamlined body shapes. This helps to?

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Keep the body warm

Reduce the loss of water

Reduce resistance in the water

Store food and fats

answer is B.

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Detailed Solution

A body with pointed ends is referred as the streamlined body. Fishes and birds have streamlined bodies.
A streamlined body gives a smooth surface to the sea animal's body which lessens obstruction in the water by decreasing friction and makes development simple.
The least resistance in water speeds up the movement, organisms move at a quicker speed. Having a streamlined body is a transformation or, more specifically, a development to assist the organisms in surviving in a better way.
Aeroplanes and ships' bodies are also streamlined to reduce the resistance due to air and water.

Hence, option B is the correct answer.

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