Multiple Choice
Bird and fish respiratory systems are similar in that both
A) employ a countercurrent exchanger.
B) have air sacs.
C) function by means of unidirectional flow of the environmental medium over the gas exchange membranes.
D) consist of infoldings of the body.
E) include a trachea that branches into paired bronchi.
Correct Answer:
Verified
Correct Answer:
Verified
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