In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Cardio is heart, because you heart pumps blood to the organs, tissue, and cells of your body.
Answer:
Access.
Explanation:
The first step is to access the victim. You must first figure out what is wrong and how they are hurt before you can treat them.
