The process of excretion in which urea is the principal end product of nitrogen containing compound is called ureotelism. Ex... mammals excretion

Ureotelism is a process where organisms excrete nitrogenous waste in the form of urea. It is commonly seen in mammals, including humans, and is a less toxic way to eliminate nitrogen compared to ammonia or uric acid. Ureotelism requires more energy to produce urea but allows for efficient water conservation.

What is ureotelism?

Terrestial animals are generally either ureotelic or uricotelic not ammonotelic why?

Ammonia is a highly toxic compound. So it shouldn't be stored in an organism's body for a long time. The problem is that ammonia can only be eliminated in a solution (because it is higly soluble). Aquatic animals are sorrounded by water, so water conservation is not a problem for them. In this manner, they are continously eliminating ammonia, in some cases even through their skins. On the other hand, terrestrial animals have to conserve water. They cannot waste it, so ammonia (in a solution) can't be eliminated continously . Since ammonia is highly toxic, it has to be converted to a less toxic form, like urea or uric acid. Both of them can be eliminated when the organism has enough water to spend.

What is ureotelism?

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Terrestial animals are generally either ureotelic or uricotelic not ammonotelic why?

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