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OpenStudy (anonymous):
what is the structure that contains membranes across which oxygen and carbon dioxide diffuses are the... a-bronchi b-bronchiolis c-vocal chords d-alveoli
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OpenStudy (anonymous):
i need an explanation..not just answers
OpenStudy (captainfluffy):
ok let me think
OpenStudy (captainfluffy):
its in yor lungs, they trap the oxygen and release the carbon dioxide
OpenStudy (anonymous):
thanks..i think i know what it is @CaptainFluffy
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