If Cecelia wants to lower her heart rate she should lower the speed she is going at on her tradmill so that she does not have to breath was much for oxygen
Yo no se mucho Ingles but I do know the answer
The answer is C. A drug is any substance that alters the normal functioning of the body.
A drug is any substance other than the nutrients essential for body changes the normal functioning of the body. It may be physiological or biological which is temporary. A drug is used in the diagnosis, treatment or prevention of a disease to relief the discomfort. A drug producing a state to relief the discomfort. A drug producing a state of casual when used in continuation or in excessively causes addiction known as drug abuse.
