WAEC Biology 2025 Theory — Question 2

Question 2 of 21 from the West African Examinations Council (WAEC) Biology 2025 Theory paper, with the correct answer and a full explanation.

1(b) Name two excretory products each of: (i) mammals; (ii) plants.

Model answer

(i) Mammals: urea, water, carbon dioxide, alkaloids (any two). (ii) Plants: oxygen (from photosynthesis), water (from transpiration), alkaloids (any two).

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