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the characteristic features of class-Ave...

the characteristic features of class-Aves are
I. they are warm-blodded and oviparous. ltb rgt II.they have pneumatic bones.
III. Syrinx is not present.
IV. Fertilisation is external.
Choose the correct option.

A

I, II and III

B

I and II

C

II and IV

D

I and III

Text Solution

Verified by Experts

The correct Answer is:
B
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