What would happen to the breathing rate of a mammal that is masked?
A)Its breathing rate would increase in response to more carbon dioxide.
B)Its breathing rate would increase in response to less oxygen in the blood.
C)Its breathing rate would slow down as it suffocated.
D)It is not possible to predict since breathing rate is controlled consciously in mammals.
E)None of the choices is correct

Question

Quizplus · Accepted Answer

When a mammal is masked, it is not able to get enough oxygen and begins to breathe in more carbon dioxide. This increase in carbon dioxide triggers the respiratory center in the brainstem to increase the rate and depth of breathing, leading to an increase in breathing rate. Therefore, the correct answer is A - its breathing rate would increase in response to more carbon dioxide.

What Would Happen to the Breathing Rate of a Mammal