Which of the following pairs of structure are homologous?
A. wing of a dragonfly and wing of a hawk.
B. wing of a dragonfly and forelimb of a flying squirrel.
C. pectoral fin of a shark and front flipper of porpoise.
D. forelimb of a dog and forelimb of a horse.
E. wing of a bluejay and front flipper of a porpoise.
Answer:
A. wing of a dragonfly and wing of a hawk.
C. pectoral fin of a shark and front flipper of porpoise.
D. forelimb of a dog and forelimb of a horse.
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