WAEC Biology 2023 Objective — Question 30

Question 30 of 50 from the West African Examinations Council (WAEC) Biology 2023 Objective paper, with the correct answer and a full explanation.

Fishes survive in water mainly because they possess

A. streamlined body
B. scales
C. paired fins
D. gillsCorrect

Explanation

Gills are organs that allow fish to breathe underwater. They are made up of feathery structures called gill filaments, providing a large surface area for exchange of gases.

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