Biology 5090 · O Level · Temperature control

Temperature control — practice question

Through which process would the body lose the greatest amount of heat on a hot, dry day, when the temperature of the air around it is above body temperature?

  • ABlood vessels in the skin become narrower.
  • BHair erector muscles relax so hairs lay flat.
  • CShivering by body muscles ceases.
  • DSweat glands become more active.

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