Proteins or polypeptides. (They are interchangeable)
I believe teens definitely are most concerned about muscular strength. They are more worried about that because they want to protect themselves, impress others, sometimes kids just want to bulk up to not look so wimpy, etc.
I would have to say teens are less worried about flexibility because when you have mussels why worry about doing the splits or putting your leg up to your head. One thing will always distract you from the rest.
Answer:
Extension: Produced by the sartorius and quadriceps femoris group of muscles.
Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles.
Explanation:
Answer:
If you stick with the healthy living practices in step 1, you will improve your fitness, health, and wellness (step 2), but the result is still dependent on others. For example, if you get fit because of exercise prescribed by coaches and physical education teachers, your fitness is dependent on their guidance.
Explanation:
Drink 15 glasses of water.
You can pour 15 glasses of water maybe in to 5-9 bottles.