During exercise, the oxygen concentration in the blood increases to twice that of resting levels.
Please select the best answer from the choices provided.
OT
OF

Respuesta :

Answer: false

Explanation:

Answer:

This is FALSE

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.