Multiple Choice
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
Correct Answer:
Verified
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