Final answer:
The body must preserve a balance of water, nutrients, minerals, electrolytes, and enzymes for survival.
Step-by-step explanation:
Homeostasis, or the maintenance of constant conditions in the body, is a fundamental property of all living things. In the human body, the substances that participate in chemical reactions must remain within narrow ranges of concentration. Water, nutrients, minerals, electrolytes, and enzymes are the key elements that the body must preserve a balance of for survival.