Most aquatic animals excrete ammonia, while land animals

Last updated: 7/19/2022

Most aquatic animals excrete ammonia, while land animals excrete urea or uric acid. What is the most likely explanation for the difference? land animals cannot afford the energy needed to make ammonia ammonia is very toxic, and it takes lots of water to dilute it they have different diets fish need to get rid of ammonia, but land animals need it to live land animals can get the extra energy needed to make urea or uric acid