I believe the answer is A
Hello! OK, so my cousin had cancer and the children had to wear masks over their mouth to go into his house or hospital room. This is because children don't have as strong of an immune system as adults. Also, children tend to have more germs than adults. This could be due to school, the playground, or even playing in dirtier places like sand or the dirt.
Answer:
Explanation: The talk test is a simply way to measure relative intensity. In general, If you're doing moderate- intensity activity, you can talk but not sing during the activity.
Answer:
Subtract your heart's resting rate from your maximum rate. For example, if you are 40 years old, subtract that number from 220; your maximum rate is 180. Next, subtract your resting rate or 80 in this example. Your heart-rate reserve is 100 beats per minute.
Explanation:
In humans, the brain accounts for ~2% of the body weight, but it consumes ~20% of glucose-derived energy making it the main consumer of glucose (~5.6 mg glucose per 100 g human brain tissue per minute.