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fresh water fish
Tadpoles excrete ammonia and frogs excrete urea
They've lost the subsequent enzymes required for catalyzing the synthesis of urea into ammonia.
Neither marine nor freshwater fish excrete urine or urea; both marine and freshwater fish excrete nitrogenous waste products as pure ammonia.
Animals that excrete in the form of urea nitrogenous waste derived from amino-acid catabolism
Ammonia. Got to love Miller Levine bio questions... haha
Animals excrete a variety of substances through the excretory and respiratory systems. Three things they excrete are carbon dioxide, uric acid, and ammonia.
The urinary system excretes nitrogenous wastes. The lungs excrete carbon dioxide.
crocodile excrete its nitrogenous waste through its cloacal opening
Most fish excrete nitrogenous waste in the form of ammonia. Ammonia is highly toxic, but fish eliminate it primarily through the gills and some through the urine. Some fish species, particularly those living in environments with low water availability, convert ammonia to a less toxic form, such as urea or uric acid, before excreting it.
decomposers
decomposers