African lungfish, which are often found in small, stagnant pools of fresh water, produce urea as a nitrogenous waste. What is an advantage of this adaptation?

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Quizplus · Accepted Answer

Urea is less toxic than ammonia and can be concentrated in the body, allowing organisms like the African lungfish to survive in environments where water for dilution is scarce, such as small, stagnant pools. This adaptation reduces the need for large volumes of water to excrete nitrogenous wastes.

African Lungfish, Which Are Often Found in Small, Stagnant Pools