Answer:
physical, mental and social.
Explanation:
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.
Attention to detail, thorough understanding of medical processes, ability to analyze large amounts of information.
Progression. A principle that refers to the gradual increase in the amount of exercise or overload sustained over a specified period of time Recovery Heart Rate.
