Question
Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?
Solution
Teresstrial animals live in drier conditions as compared to others. They always are in the grave dangers of excessive loss of water.
Excretion of urea and uric acid requires less amount of water as compared to the excretion of ammonia which requires a large amount of water. In order to avoid water loss they are ureotelic or uricotelic and not ammonotelic.
