Read the section about Respiration and answer the question that follows.

Question

What controls how fast you breathe?

(2 points)
Responses

level of carbon dioxide in the body
level of carbon dioxide in the body

level of oxygen in the body
level of oxygen in the body

temperature of the body
temperature of the body

blood pressure in the body

Answer 1

The primary control of how fast you breathe is primarily influenced by the level of carbon dioxide in the body and, to a lesser extent, the level of oxygen in the body. Changes in carbon dioxide levels are the most significant factor that triggers the respiratory centers in the brain to adjust the breathing rate.

So, the correct answer is: level of carbon dioxide in the body.