Jim's doctor suggested he should work on exercises that strengthen both his heart and his lungs. which of the following exercises would be best for jim?
a. rollerblading
b. pull-ups
c. push-ups
d. rock climbing

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

Which are the following could be a reason why a vocational school may not be for you

Why is it so important to have a lifetime commitment to training? a-it takes your entire life to become fit b-it keeps you from becoming bored c-you will lose strength and endurance once you stop exercising d-it increases your motivation in life