Many factors influence BMR. What is the most critical factor? (7,8)

7.    Many factors influence BMR.  What is the most critical factor?

        a.    The way an individual metabolizes fat.
        b.    The way skeletal muscles break down glycogen.
        c.    The ratio of surface area to volume (weight) of the body.
        d.    An individual’s body weight.

8.     The term energy output includes:
       
        a.     the energy lost as heat (60%).
        b.     the energy used to work (driven by ATP).
        c.     the energy stored in the form of glycogen.
        d.     All of the above are correct.