Giving the person type a or type B or type O blood would introduce antibodies into the blood that the body wouldn't be able to control
The muscles of the ventricles depolorize.
Top-homework
2nd level- walking
3rd- weight training
4th- soccer
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.
B. predicting what friends will think
