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Question

Narrowing of blood vessels takes place in/at _________.


A

low temperature

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B

0oC

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C

warm climate

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D

moderate temperature

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Solution

The correct option is A

low temperature


low temperature

At low temperature, the blood vessels get narrowed or vasoconstricted. This reduces the blood supply to the skin. There is less loss of heat by convection, conduction and radiation


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