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Which one of the following in birds, indicates their reptilian ancestry?

Which one of the following in birds, indicates their reptilian ancestry?

Options

(a) Scales on their hind limbs
(b) Four-chambered heart
(c) Two special chambers crop and gizzard in their digestive tract
(d) Bird Tail

Correct Answer:

Scales on their hind limbs

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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