Answer:
1. the measure of the health and condition of the heart, lungs, muscles, and joints of an individual - Physical Fitness
2. the parts of the body that are related to the movement of blood - circulatory system
3. a plan in which a person chooses to exercise a certain number of times every week - regular exercise
4. the organs inside the body and how they function together- internal system
5. a type of physical conditioning that lengthens the muscles and improves the movement of the joints - flexibility
6- obstacles or difficulties that keep a person from accomplishing what he wants to, such as regular exercise - limiting factors
