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Buccopharyngeal respiration in frog...

Buccopharyngeal respiration in frog

A

Is increased when nostrils are closed

B

Stops when there is pulmonary respiration

C

Is increased when it is catching a fly

D

Stops when the mount is opened

Text Solution

Verified by Experts

The correct Answer is:
D
In buccopharyngeal respiration, the mucosa of the buccopharyngeal cavity is ideally adapted for gaseous exchange. Hence, while quietly floating upon water surface and even to resting upon the land, frogs respire by their buccopharyngeal cavity also. During this process the mouth, gullet remians closed, but nerves remain open.
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