Which of the following is true about muscle tone?
a. it increases with age.
b. it describes the relaxing of some muscles.
c. it is responsible for keeping the back and legs straight when you re relaxed.
d. it decreases as you exercise more.

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.

Which of these is a fact about performance enhancing drugs? a. steroids lack addictive properties. b. steroids use can cause dangerous side effects. c. it is safe to use steroids when working out. d. a person can get in legal trouble for using steroids.

Dark clothing enables sweat to be evaporated on the skin's surface very quickly. loose light tight