Question

The level of carbon dioxide in the blood affects the breathing rate. It also affects the heart rate. How would you expect high levels of carbon dioxide to affect the heart rate?

Answer 1

The higher the level of carbon dioxide, the higher the breathing rate which can affect the rate of the heart.

Step-by-step explanation:

Answer 2

If there is a high level of carbon dioxide in the blood, the breathing rate would be higher, which makes the heart rate higher as well.