alleryWhich nitrogenous waste needs the least water to remove?
AUracil acid
BUric acid
CUrea salt
DUrine acid
Answer & Solution
Correct answer: B. Uric acid
1. The less toxic the waste, the less water is needed.
2. Uric acid, being the least toxic, can be removed with a minimum loss of water.
3. So the correct answer is uric acid.
_Source: syllabus Biology, Ch 19 'Excretory Products and their Elimination'_
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