Multiple Choice
Which statement about the air sacs of birds is false?
A) They connect to airways in the lungs.
B) They are structured as anterior and posterior pairs.
C) They make the bird's respiratory system more efficient than a mammal's.
D) They allow for one-way airflow through the lungs.
E) They provide an extra gas exchange surface.
Correct Answer:

Verified
Correct Answer:
Verified
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