No, they substitute foods so they don't kill a life
Answer:
The correct answer is option C. threshold is reached more quickly and the heart rate would increase.
Explanation:
The natural pacemaker or cardiac pacemaker is the aggregations of cells that create electrical impulses that set the pace of blood pumping. The electrical impulses or the action potential are responsible for the contraction of the cardiac muscles. The rate of cardiac muscles is term as heart rate, which is control by the impulse or action potentials regulated by sodium influx and potassium outflux.
Thus, the correct answer is option C. threshold is reached more quickly and the heart rate would increase.
I believe the answer is random assignment
hope this helps :)
