Class 11 Biology Breathing and Exchange of Gases Mechanism of Breathing

Medium

What happens when the pressure within the pulmonary cavity is higher than the atmospheric pressure?

A
Inhalation of air
B
Expulsion of air
C
No inhalation and expulsion of air occurs
D
Lungs inflate and rupture

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Class 11 Questions

Class 11

Biology Questions

Chapter

Breathing and Exchange of Gases

Subtopic

Mechanism of Breathing

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