Positive energy balance is important when

What type of disease causing organism is so small you must use a microscope to see it? a) carryon b) pathogen c) protozoa d) vices

To avoid whiplash, the center of the headrest must be your ears.

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above