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3 answers

It only has one layer of squamous epithelial cell which means it i very thin and since gases can only pass through very thin membranes, alveoli are the ideal site for gas exchange.

2006-10-25 15:43:13 · answer #1 · answered by smarties 6 · 0 0

it hasfour characteristics that make it good for gas exchange 1 it is moist 2 it is thin 3 it is close to an efficient transport system 4 it has a good supply of oxygen

2006-10-25 22:45:05 · answer #2 · answered by bell 4 · 0 0

Hi. Most importantly it has a tremendous surface area.

2006-10-25 22:54:23 · answer #3 · answered by Cirric 7 · 0 0

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