Question

Organisms are classified on the basis of nitrogenous waste excreted by them.Explain.​

Answer 1

Explanation:

Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder.

Answer 2

Answer:

Any metabolic waste product that contains nitrogen. Urea and uric acid are the most common nitrogenous wasteproducts in terrestrial animals; freshwater fish excrete ammonia and marine fish excrete both urea and trimethylamine oxide.

Explanation:

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