Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?
Terrestrial animals are both ureotelic or uricotelic, and now no longer ammonotelic. This is due to the subsequent main reasons: (a) Ammonia is fairly poisonous in nature. Therefore, it wishes to be transformed right into a much less poisonous shape including urea or uric acid. (b) Terrestrial animals want to preserve water. Since ammonia is soluble in water, it can not be eliminated continuously. Hence, it's far transformed into urea or uric acid. These bureaucracy are much less poisonous and additionally insoluble in water. This facilitates terrestrial animals preserve water.