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Alex73 [517]
3 years ago
5

A _______ is an internal sac-like respiratory surface that allows oxygen to be absorbed from the air.

Health
2 answers:
Mariulka [41]3 years ago
8 0
A. Lungs because thats your respiratory system
bonufazy [111]3 years ago
8 0
A because that is the correct answer.
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