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WAEC Biology 2005 Question 24

Question 24

Homeostasis

Which of the following takes place when a person's body temperature rises above 37°C

  1. A.Sweating and vasoconstriction
  2. B.Panting and vasoconstriction
  3. C.Sweating and vasodilation
  4. D.Panting and vasodilation
Show the answer and explanation

Answer: C (Sweating and vasodilation)

Explanation

When humans get hot, sweat glands produce sweat that cools the skin as it evaporates, and skin blood vessels widen (vasodilation) to lose heat.