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JAMB Biology 1978 Question 32

Question 32

Homeostasis

Which of these is not a function of the mammalian skin?

  1. A.Protection against bacterial infection
  2. B.Excretion of wastes and water
  3. C.Production of vitamin D when exposed to light
  4. D.Production of pigments to reduce temperature
  5. E.Regulation of body temperature
Show the answer and explanation

Answer: D (Production of pigments to reduce temperature)

Explanation

Skin pigment (melanin) protects against ultraviolet light; it does not lower body temperature.