Breathing Rates are Automatically Increased When _____ Levels are _____

Question

Breathing rates are automatically increased when _____ levels are _____.​
A) ​oxygen; high
B) ​carbon dioxide; high
C) ​oxygen; low
D) ​carbon dioxide; low
E) ​ATP; low

Accepted Answer

Breathing rates increase automatically when carbon dioxide levels are high in the blood to expel the excess CO2 and maintain the acid-base balance in the body.

Breathing rates are automatically increased when _____ levels are _____.​

Breathing rates are automatically increased when _ levels are _.