Which statement is true?
A) Water is 80 times denser than air.
B) It does not take energy to move air over a respiratory surface.
C) Water is less viscous than air.
D) It takes more energy to move water across a respiratory surface than it does to move air across it.
E) Higher metabolic rates would more readily evolve in aquatic animals than in terrestrial animals.
Correct Answer:
Verified
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