Question

Study the following and pick up the correct combinations

S.No.	Group	Salient Feature	Example
I	Aves	Pneumatic bones	Columba
II	Mammalia	Corpus callosum	Macaca
III	Reptilia	Epidermal scales	Calotes
IV	Chondrichthyes	Cartilagenous skeleton	Scoliodon

• A. I only
• B. I and II only
• C. I, II and III only
• D. I, II, III, IV

Hint:

Group, feature, and example should be memorized for every chordate class.

Answer 1

The Correct Option is D

All given combinations are correct. Aves have pneumatic bones, Mammals have corpus callosum, Reptiles show epidermal scales, and Chondrichthyes have cartilaginous skeleton.