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Assertion.Avianbones are pneumatic. Re...

Assertion.Avianbones are pneumatic.
Reason. This makes body light for flight in the air.

A

If both A and B are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true but R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
A
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Besides pneumatic bones, another useful flight adaptation in birds is

PRADEEP-ANIMAL KINGDOM -Assertion-Reason Type Questions
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  13. Assertion. Vertebrates have O(2) -carrying pigment in the erythrocytes...

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