Answer:
Body Fat Ratio. It is a new indicator of obesity. It is far more efficient that the Body mass index. The main reason for this is that BMI does not differentiate between muscle mass and fat mass and it also does not differentiate central obesity.
Body fat ratio has been exactly devised in order to root out all the fallacies associated with BMI. It is the current best obesity indicator available to us.
B. more teens have unprotected sex when drinking alcohol
Answer:
The smallest bronchioles end in tiny air sacs, called alveoli. They inflate when a person inhales and deflate when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream.
Explanation: