Im asking for a friend, how do you know if your ex wants to get back together?

During exercise, the oxygen concentration in the blood increases to twice that of resting levels. t or f

How many calories are in one pound of fat

The real advantage to hydrostatic weighing is that it a. can be done anywhere with no equipment b. gives one of the most accurate measurements of body fat c. uses calipers to measure body fat select the best answer from the choices provided.