The delicate gills of fishes are protected by _______ and supported by _______.
A) opercular flaps; gill arches
B) opercular flaps; gill filaments
C) gill filaments; gill arches
D) opercular flaps; a diaphragm
E) gill arches; a diaphragm
Correct Answer:
Verified
Q21: Which feature characterizes the lungs of mammals?
A)
Q22: Refer to the figure showing a countercurrent
Q23: In the respiratory cycle of birds, air
Q24: Which of the following represents the
Q25: Refer to the figure showing the respiratory
Q27: The rate of gas exchange in mammals
Q28: Which statement about the structure of the
Q29: Refer to the graph showing a spirometer
Q30: Tidal breathing decreases the efficiency of gas
Q31: Air flows into the lungs of mammals
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