Buccopharyngeal respiration in frog is increased when nostrils are closed
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By cutaneous respiration frog fulfill its 30% need of oxygen. ... Hence, while quietly floating upon water surface, and even when resting upon land, frogs respire by their buccopharyngeal cavity also. During this process, the mouth, gullet and glottis remain closed, but nares remain open.
Respiratory substrate: Respiratory quotient
Organic acid: 1.33
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