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WAEC Biology 1996 Question 13

Question 13

Excretion

Which of the following is more concentrated in the blood within the renal artery than the blood within the renal vein?

  1. A.Urea
  2. B.Red blood cells
  3. C.Glucose
  4. D.Protein
  5. E.White blood cells
Show the answer and explanation

Answer: A (Urea)

Explanation

The kidney removes urea, so blood leaving in the renal vein has less of it.