passwella.
Menu

JAMB Biology 1978 Question 47

Question 47

Excretion

Which of these products obtained from analysing sweat from the skin is not an excretory product?

  1. A.Water
  2. B.Salts
  3. C.Dust
  4. D.Urea
  5. E.Urates
Show the answer and explanation

Answer: C (Dust)

Explanation

Dust comes from outside the body and is not a waste of metabolism, so it is not excreted.