Answer:
Because it helps kill germs.
Oncology is the study and treatment of cancer.
That really depends on your doctor. Some people are high at 140 and others at 130 for the systolic. If you are young, I think 130 is pretty high. If you are older maybe 140 if the point where you should be paying attention.
For the diastolic 80 is good. 85 is take a note book when you go see a doctor and 90 it's time to be a worry wart.
These are just numbers. Throughout the day, the numbers can vary quite a bit so one bad reading does not make you a candidate for high blood pressure.
If you learn to relax before it is taken, it makes a 10 - 15 point difference on the systolic and don't let people bully you about it.
Answer:
I think is C because if use clean instruments you avoid infections.
