To meet the high oxygen demands of flight, birds _____.
A) use simple lungs
B) use air sacs connected to their lungs
C) use carbon dioxide for respiration
D) can diffuse oxygen through their skin
E) use simple lungs and can diffuse oxygen through their skin

Question

Quizplus · Accepted Answer

Birds use air sacs connected to their lungs to meet the high oxygen demands of flight. These air sacs allow for a more efficient gas exchange process, which is crucial for sustaining the high metabolic rates required during flight.

To Meet the High Oxygen Demands of Flight, Birds _____