Dynamic stretches are part of an effective warm-up because they can help a. lubricate the muscles used in the activity
b. decrease cardiovascular difficulty in the activity
c. expand lung capacity for the activity
d. build endurance for the activity

When calculating the daily protein needs for marathon runners or competitive weightlifting, you should allow for approximately grams of protein per kilogram of body weight

Your good friend emma invited you to her 18-year-old cousin matt's birthday party. emma is a straight-a student who is also on the cheerleading squad. when you get to her cousin's house, you see that there are no adults there. emma's cousin hands her a beer. he then hands you a beer and says, "here, have one. i do it all the time, and i never get caught." what would you do?

Your friend is trying to quit drinking to become more healthy. what can she do to improve her chances of sucess?