You are holidaying on the beautiful but hot Thar desert. Which of the following would happen in your body in response to the environmental 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 weather is hot, our blood vessels dilate (vasodilation) to bring more blood near the skin surface. The sweat glands on our skin secrete sweat, and use the heat from the blood to evaporate sweat. Vasoconstriction and shivering occur in response to cold environmental temperatures.

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