Answer:
free from dirt, marks, or stains.
Explanation:
<span>Heart Rate Reserve, HRR. Heart rate reserve (HRR) is the difference between resting heart rate (HR<span>rest) and maximum heart rate</span> (HRmax). Heart rate reserve is used when determining exercise heart rates. The Karvonen formula is used to calculate exercise heart rate at a given percentage training intensity.</span>
Answer:
abdominal thrust [helimlich maneuver]
The Epiglottis protects food from entering the larynx.
