WAEC Biology 2018 Theory — Question 3

Question 3 of 19 from the West African Examinations Council (WAEC) Biology 2018 Theory paper, with the correct answer and a full explanation.

1.(c) State two differences between reproduction in mammals and in amphibians.

Model answer

Mammals do not lay eggs (except a few, e.g. egg-laying mammals) while amphibians lay eggs. Fertilization in mammals is internal, while fertilization in amphibians is external.

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