WAEC Biology 2012 Objective — Question 14

Question 14 of 60 from the West African Examinations Council (WAEC) Biology 2012 Objective paper, with the correct answer and a full explanation.

The diagram above is an illustration of the human excretory system. Which of the labeled parts contains the highest amount of nitrogenous wastes?

A. ICorrect
B. II
C. IV
D. VI

Explanation

The part labeled 'I' is the urinary bladder. It stores urine (which contains huge amounts of nitrogenous wastes) before it is finally expelled via the urethra.

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