Which is a disadvantage of air as a respiratory medium?

a. Air evaporates water from the respiratory surface.
b. Air contains 30 times as much O2 as water.
c. Air is 1000 times less dense than water.
d. Air requires less energy to ventilate over the respiratory surface.
e. O2 diffuses more rapidly in air than in water.


A

Biology & Microbiology

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