is the binding site of oxygen on red blood cells while are the cells in the blood that help fight infection

What is the targeted temp during acls

Which of the following is a major cause of injury

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)