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WAEC Biology 2021 Question 13

Question 13

Excretion

The diagram is an illustration of the longitudinal section of a mammalian organ.
Which of the labelled parts is the cortex?

Diagram for this question
  1. A.I
  2. B.II
  3. C.III
  4. D.IV
Show the answer and explanation

Answer: D (IV)

Explanation

The organ is a kidney; I and II are blood vessels and III is the ureter, so IV, in the outer tissue, is taken as the cortex.