What of the following is NOT a function of protein in the body a. maintenance of fluid and electrolyte balance
b. support growth and replace wore-out cells
c. preferred supply of energy for the brain
d build antibodies for immunity

Correct answer is A: maintenance of fluid and electrolyte balance.

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.