Select the correct answer. What begins when the exercise intensity demands ATP production at a higher rate than the energy systems can supply it?
A.
Lactic acid
OB
Muscle fatigue
The ATP-PC system
C.
D. VO2 max

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.

regular hand soap prevents disease just as well as antibacterial soap. - d.