Topics: Excretion Quiz
To conserve precious salts, freshwater fish…
A. produce small amounts of urine
B. significantly dilute their urine
C. do not take up water
D. drink through their gills
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Which of the following statements about uric acid is true?
A. Uric acid is more soluble in water than urea
B. The darker material in bird droppings is mostly uric acid
C. Animals that excrete uric acid avoid the problem of dehydration associated with the excretion of urea
D. Uric acid cannot be excreted because of its toxicity