What are Ammonotellic, Ureotellic and Yricotelic animals?
Answers
Explanation:
The process of excreting nitrogenous waste in the form of ammonia is termed ammonotelic. The phenomena is recognized as Ammonotelism. Birds, amphibians, reptiles, most of the aquatic animals, including fishes, some terrestrial invertebrates, larvae, and mammals including humans excrete urea acid as waste.
In this article will read about ammonotelic, ureotelic and uricotelic animals.
Ammonotelic animals
An ammonotelic organism excretes nitrogenous waste as soluble ammonia. Ammonia the product or waste formed is highly toxic. Highly-soluble, therefore needs plenty of water for its excretion
Example
Most of the aquatic animals including protozoans, crustaceans, platyhelminths, cnidarians, poriferans, echinoderms, fishes, larvae/tadpoles of amphibians are ammonotelic.
Ureotelic animals
A ureotelic organism excretes excess nitrogen as urea. Urea is less toxic and needs less water in comparison to Ammonia. The uricotelic organism excretes uric acid or its salts. In contrast to Ammonia and Urea, Uric acid is the least toxic and the most limited soluble in water. It can be stored in cells and body tissues without toxic effects and thus needs the least water and is a highly efficient mode of excretion in comparison to two other methods.
Example
Ureotelic organisms include cartilaginous fish, few bony fishes, adult amphibians and mammals including humans.
Uricotelic animals
The species that excrete uric acid waste are called uricotelic organisms. The excreta of uricotelic organisms is typically white paste and insoluble solids or semi-solid. Needs very little water just to flush out the uric acid
Example
Uricotelic organisms include terrestrial arthropods (including insects), lizards, snakes, and birds.
ANSWER:-
The 3 major groups of animal wastes are:
1. Uricotelic - The organisms that excrete nitrogenous wastes as uric acid in the form of pellet or paste with a minimum loss of water are called uricotelic animals. Fr examples, Birds that cannot afford to loose water like humans or fishes, therefore they have developed a mechanism to excrete waste loosing least amount of water. Uric acid is only a little soluble in water and hence can be excreted by loosing only a small amount of water.
2.Ammonotelic - Those organisms which excrete nitrogenous wastes in the form of ammonia are called as ammonotelic. Ammonia is highly soluble in water and for its elimination a lot of water is required. Aquatic animals live in abundance of water and can afford to loose a lot of water as they would gain it very easily. So, aquatic animals are ammonotelic.
3. Ureotelic - Ureotelic animals are animals that excreate nitrogeenous wastes in the form of urea are called ureotelic. Urea requires less water to be eliminated than ammonia and hence it has become a feature of terrestrial animals like huumans.