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

Question

Quizplus · Accepted Answer

Small stagnant pools do not provide enough water to dilute ammonia, which is toxic. Urea, on the other hand, is less toxic and can be excreted in a concentrated form, without the need for large amounts of water to dilute it.

African Lungfish, Which Are Often Found in Small Stagnant Pools