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A _______ is an internal sac-like respiratory surface that allows oxygen to be absorbed from the air. A. lung B. trachea C. gill D. pharynx
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A _______ is an internal sac-like respiratory surface that allows oxygen to be absorbed from the air.

A. lung
B. trachea
C. gill
D. pharynx

User Oceansize
by
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2 Answers

5 votes
A because that is the correct answer.
User Muthukumar Selvaraj
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8.9k points
4 votes
A. Lungs because thats your respiratory system
User Shankar Raju
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