Question

main types of nitrogenous waste from least toxic to most?

Answer 1

Answer:

Urea is the most common form of nitrogenous waste in human body fluids. Urea is less toxic than ammonia but like ammonia, urea is in solution and, for terrestrial animals, its elimination from the body requires some loss of water as water is used to flush it from the body (urea and ammonia are both found in urine

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