Which is the best way to keep your muscular system healthy?

a. participate in different types of exercise

b. use anabolic steroids

c. limit warm-up and cool-down periods

d. play only one sport all year long

If one of your friends tries to get you to stay out later than your curfew, you should: a. go along with it because your parents are too strict anyway. b. yell at them about what a stupid idea it is. c. say you don't want to, but if they insist, you stay. d. tell them that you're going home, but they can stay out if they want to.

Cultural, economic , and social changes that resulted in the migration of more people into cities - utilitarianism -industrial revolution -age of enlightenment

Which of the following identifies a main culprit for america’s increasing weight gain