Answer:
That answer is dependent on you and what you think of life
First: Scarring
Scarring has nothing to do with defense
Second: False
Its B and T cells (lymphocytes)
Third: B cells
B cells produce antibodies
The answer would have to be FALSE.
Answer:
Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.
Explanation:
