I will mark brainliest so youre rank goes up

whats going on boo boo.

explanation:

relationship between pressure and air volume and led to the understanding of how respiration works; i believe this is the correct answer ; /// good luck

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.