How many days a week should children and teenagers get 60 minutes of physical activity?

a. two days a week

b. three days a week

c. four days a week

d. five days a week

Which of these is a sexual stereotype?

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d

The effect of alcohol varies from one person to another, mostly because it depends on the blood alcohol concentration, or bac. what does blood alcohol concentration not depend on? a. amount of food in the stomach b. gender and size of the drinker c. rate of consumption d. time of drinking