Answer:
The answer is age.
Explanation:
So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.
Answer:
don't think about it you'll do great
Explanation:
Cilia is found in the trachea, they keep mucous and dirt etc out of the lungs
During an asthma attack the muscle wall contracts and the lining of the airways becomes swollen and inflamed. These changes cause a narrowing of the airways which is further aggravated by an increase in secretions from the mucus membrane, which may actually block the smaller airways hope this helps
Answer:
i think its O public speaking, moderating, and presenting
Explanation:
