A) Syrinx and uropygial glands
B) Claws and uropygial glands
C) Scales and claws
D) Syrinx and scales
Correct Answer: C
Solution :
Scales and claws of integumentary structures characterize birds as glorified reptiles because presence of scales and claws are an important character of reptiles. Scales and claws provide evidence that birds evolved from the reptiles.
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