★ Excretion Quiz
Marine animals that have body fluids with a solute concentration equal to that of the surrounding sea water are:
A. osmoregulators
B. osmoconformers
C. osmoinformers
D. hyperosmotic
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Mammals have evolved a sophisticated mechanism for eliminating nitrogenous waste that involves:
A. secretion through cell membranes
B. forming urea and storing it in concentrated solution
C. producing uric acid and excreting it with feces
D. recycling urea and using it as an energy source
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