WAEC Biology 2026 Question 12

Question 12

Excretion

Which of the following pairs of structures perform the same function in their organisms?

  1. A.Flagellum and lung
  2. B.Contractile vacuole and kidney
  3. C.Food vacuole and skin
  4. D.Trichocyst and heart
Show the answer and explanation

Answer: B (Contractile vacuole and kidney)

Explanation

Both the contractile vacuole (in protozoa) and the kidney remove excess water and wastes, i.e. osmoregulation and excretion.