Problem: What is the function of the air sacs in the respiratory system of birds? a) To allow mixing of fresh and stale air so that the oxygen/carbon dioxide ratio is optimal b) To hold air before and after it passes through the lungs so that it moves in one direction c) To provide a site for gas exchange between the blood and the surrounding air d) To provide a storage site for holding fresh air that can be drawn from during periods of high metabolic demand.

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Avian Respiratory System:

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Problem Details

What is the function of the air sacs in the respiratory system of birds? 

a) To allow mixing of fresh and stale air so that the oxygen/carbon dioxide ratio is optimal 

b) To hold air before and after it passes through the lungs so that it moves in one direction 

c) To provide a site for gas exchange between the blood and the surrounding air 

d) To provide a storage site for holding fresh air that can be drawn from during periods of high metabolic demand.

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Based on our data, we think this problem is relevant for Professor Peterson's class at UF.