Question

Select the set of characters equally shared by reptiles and aves among the following

• A. Pneumatic bones and powerful breast musculature.
• B. Interclavicle, uricotelism and megalecithal eggs.
• C. Urinary bladder and Furcula.
• D. Furcula and keel.

Hint:

Think excretion (uricotelism) and reproductive traits for shared reptile-aves features.

Answer 1

The Correct Option is B

Both reptiles and birds (aves) share characters like interclavicle bone (in fossil birds), uricotelic excretion, and large yolky (megalecithal) eggs. These are primitive traits retained in both groups.