Neuroscientist Jan Born performed experiments in which he tested individuals' aptitudes before and after sleeping. How did he explain his observed results?

Researchers are most likely to use an electroencephalograph to measure their brain wave activity throughout the night. Formulating a hypothesis.  Find out what goes on in people's brains during a typical night's sleep, Proposes that there is a relationship between the amount of sleep deprivation and the ability to solve complex mental tasks; the more sleep deprived people are, the more mistakes they are likely to make. 

answer; /// i believe that the correct answer is (a) administrative team;

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.