It is recommended that you exercise within 55 to 85 percent of your maximum heart rate<span> for at least 20 to 30 minutes to get the best results from aerobic exercise</span>
Answer:
A
Explanation:
Air moves down the trachea, a long straight tube in the chest. The diaphragm pulls air in and pushes it out. Behind the nasal cavity, air next passes through the pharynx, a long tube that is shared with the digestive system. Both food and air pass through the pharynx. A flap of connective tissue called the epiglottis closes over the trachea when food is swallowed to prevent choking or inhaling food. In humans, the pharynx is important in vocalization.
Say no
come up with an excuse to leave
tell them about the negative effects of drugs then say no
say you don't do drugs
tell them you can't
walk away
