<span>Na+, cl-, hco3-, and k+ are electrolytes. Na+ is sodium. Cl- is chloride. Hco3- is bicarbonate and k+ is potassium. Electrolytes are needed for our organs and cells to function like they should. We obtain some of these electrolytes through the food we eat, such as sodium from salt and potassium from bananas.</span>
The most important reason they are considered non living is because they cannot live and reproduce without the help of a host cell.
This might help:
https://quizlet.com/1965478/environmental-health-test-1-flash-cards/
