A certain substance not for medication or illness for a certain pleasure?​

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells

In this model, what do p, s, and a bases represent?

Suppose you are facilitating an advisory group to address teen pregnancy. whom would you invite to the group and why ? .