Q:

Which of the following is a biological mechanism of preventing heat loss?

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Which of the following is a biological mechanism of preventing heat loss?


  1. the production and evaporation of sweat
  2. increasing muscular activity
  3. vasoconstriction of superfi cial blood vessels
  4. seeking a warm environment

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C: Vasoconstricting blood vessel close to the body surface will withdraw blood from the surface and allow the skin temperature to cool. 

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