The main reason why the Supreme Court case Marbury v. Madison was significant is because B. it established the power of judicial review, since this allows the Supreme Court to check the legislature. This question is archived.
Water: Why We Need It. Hydration is important because the body is comprised mostly of water, and the proper balance between water and electrolytes in our bodies really determines how most of our systems function, including nerves and muscles, says Larry Kenney, PhD, a professor of physiology and kinesiology at Penn State.
Electrolytes are ions in solution. The human body has lots of electrolytes in blood, plasma, and interstitial fluid (the fluid between cells). Most electrolytes in the body ar â¦ e sodium ions (Na+). The electrolytes in sodium chloride (NaCl) are sodium ions (NaK) and chlorine ions (ClL). Electrolytes are essential to a healthy body because they are what the cells that make up nerves, the heart, and muscles use to carry electrical impulses.