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WAEC Biology 2001 Question 20

Question 20

Respiration

Which of the following pairs of structures does not perform similar functions?

  1. A.Lungs and spiracles
  2. B.Root hair and mammalian hair
  3. C.Feathers and scales
  4. D.Contractile vacuole and kidney
Show the answer and explanation

Answer: B (Root hair and mammalian hair)

Explanation

Root hairs absorb water and salts, while mammalian hair keeps the body warm, so their functions differ.