Question

When an athlete began running both her breathing and heart rates increased.the athlete’s breathing and heart rates increased as she was running because the athlete needed to:

Answer 1

Hey!

The heart rate INCREASED beacuse the Athlete needed to take in more oxygen...

The breathing rate INCREASED to get rid of Carbon Dioxide...

Step-by-step explanation:

CO2--poisonous for cells in the Human body...breathing it can kill AND the CO2 is produced MORE as she execises as respiration happened quicker...

Oxygen---more oxygen presence aides the rates of respirartion and reduces the chance of OXYGEN DEBT = The lack of oxygen can lead to damage to muscles as LACTIC ACID is produced (poisonous for muscle cells)

I HOPE THIS HELPS YOU!

Answer 2

release carbon dioxide and breath in more oxygen.

explanation; During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.