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Q.

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

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a

Store food and fats

b

Reduce resistance in the water 

c

Reduce the loss of water 

d

Keep the body warm

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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