Question

Assertion (A): Pneumaticity of bones is the unique feature of reptiles.
Reason (R): Air sacs associated with lungs of birds facilitate continuous oxygenation of blood.

• A. Both A and R are correct and R is the correct explanation of A.
• B. Both A and R are correct but R is not the correct explanation of A.
• C. A is correct but R is incorrect.
• D. A is incorrect but R is correct.

Hint:

Pneumatic bones are a characteristic of birds, aiding in flight, while reptiles do not have this feature.

Answer 1

The Correct Option is D

The assertion is incorrect because pneumaticity of bones is actually a feature of birds, not reptiles. The reason is correct because air sacs in birds help in continuous oxygenation of blood, but this does not explain the assertion.