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Assertion:Air sacs are connected to lung...

Assertion:Air sacs are connected to lungs in Class Aves.
Reason: Air sacs supplement respiration in birds.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
a
Respiration if by lungs in Class Aves (birds). The lungs are spongy and inelastic. Air sacs are connected to lungs to supplement respiration.
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