A) filoplume
B) remiges
C) corert
D) Both (b) and (c)
Correct Answer: D
Solution :
Quills (flight feathers) are large feathers of wings (remiges) and tail A quill contain a shafl like structure, which is differentiated into hollow proximal calamus and distal solid reaches. Conerts are small feathers similar to quills meants for filling gaps on the wing and tails.
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