Answer: to help indicate the level of body composition
Explanation: while not the only way, it does help. BMI cannot tell you if weight is fat or muscle. It also has nothing to do with activity level.
I believe the answer is:
in direct contact with a HIV positive person's body fluids such as blood or semen.
Well what are the following
That is the difference between the two, I am not good at explaining these types of things! XD