42. Osmoregulation and Excretion
Osmoregulation and Excretion
Multiple Choice
Multiple ChoiceThe most effective molecule for nitrogenous waste disposal in desert animals would be __________.
A
ammonia because it uses less energy to make than uric acid or urea
B
urea because it is less toxic than uric acid
C
uric acid because it takes less energy to make than urea
D
ammonia because it is the most soluble of all the nitrogen-containing metabolic waste products
E
uric acid because it requires very little water for excretion
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