The Advantage of Excreting Nitrogenous Wastes as Urea Rather Than

question 54

Multiple Choice

The advantage of excreting nitrogenous wastes as urea rather than as ammonia is that

• A) urea can be exchanged for Na⁺.
• B) urea is less toxic than ammonia.
• C) urea requires more water for excretion than ammonia.
• D) urea does not affect the osmolar gradient.
• E) less nitrogen is removed from the body.

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