Which of the following characters does n...

Which of the following characters does not fit for Aves ?

A

Skin is dry, without glands except oil/preen glands at the base of tail

B

Alimentary canal has 2 additional chambers, crop and gizzard

C

Hind limbs are modified for walking, swimming or clasping. Forelimbs are modified into wings.

D

Beak has teeth

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The correct Answer is:

D

In birds, the upper and lower jaws are modified into beak that lack teeth.

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