Thomas is a marathon runner. He eats a well-balanced diet and drinks plenty of fluids, but he should take supplements to account for all the calories he loses while running.

the answer would be e. sara because of the way she approaches the situation.

i believe the answer would be negative peer pressure

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.