You are on a holiday to the beautiful, but hot Thar desert. Which of the following might happen in your body, in response to the high temperature?

Vasoconstriction

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Shivering

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Sweating

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Vasodilation

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Solution

The correct option is D
Vasodilation

When the temperature outside is high, blood supply to the skin is increased, due to vasodilation. This results in greater loss of heat from the body. Simultaneously, the secretion of sweat also, increases. This sweat evaporates from the body surface, causing loss of heat from the body and leads to cooling of the skin.

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