The study of biometrics is not as simple as other fields of study about the body. Why is it more difficult to understand the role of energy in the body than other elements, like hormones?
A.
Most basic principles of energy do not apply to the body.
B.
The body uses energy when in motion but not while at rest.
C.
Some systems in the body require energy while other do not.
D.
The body is very complex, so energy moves many different ways.

When you cut your hand, it hurts because of the nerves in which part of the body?
A.
central nervous system
B.
adjacent nervous system
C.
peripheral nervous system
D.
alternative nervous system

Amari has been exercising regularly and she is really starting to feel the benefits. Overall, she has more energy and just feels better about herself. She has started volunteering for things that she otherwise would have been too shy to do. Could this newfound confidence be a result of her good habits?
A.
Yes, she looks better, so she feels better.
B.
Yes, she is producing more testosterone.
C.
No, she has probably just matured a little.
D.
No, exercise does not have psychological effects.