Q.

Which of the following is correct about Aves ?

a. Forelimbs are modified into wings
b. Bones are hollow and light in weight helps in flight
c. Scales are found on hind limbs

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a

a and b

b

b and c

c

a and c

d

a, b and c

answer is D.

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Detailed Solution

In birds, the forelimbs are modified to form wings for flight. Bones are hollow (pneumatic) and light in weight helps in flight. Scales are found on legs for protection.

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