Multiple Choice
In the respiratory cycle of birds,inhaled air flows through the trachea,to the bronchi,and then
A) into the parabronchi and posterior air sacs.
B) back through the trachea.
C) to the air capillaries.
D) into the parabronchi and anterior air sacs.
E) into the anterior air sacs.
Correct Answer:

Verified
Correct Answer:
Verified
Q21: Since there are no active transport mechanisms
Q23: Air sacs of the avian respiratory system
Q24: Breathing rhythm in mammals is generated in
Q25: Rapid gas exchange can be accomplished more
Q26: Maximal tidal volume is about _ times
Q27: Which statement about human breathing is true?<br>A)
Q28: The gas exchange system of _ includes
Q29: Which group of animals lacks specialized breathing
Q30: In mammals,the respiratory structure(s)that carry air into
Q110: Gas exchange in animals always involves<br>A) lungs.<br>B)