Answer:
1-it means "with oxygen"its activities that moves muscles and gets you breathing
2-180 over 80 is normal
3-relating to the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries
4-relating to the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.
5-overheating you can be short on breath bloody nose and etc
Explanation:
Methotrexate: a gold standard for treatment of rheumatoid arthritis
In soccer your hand muscles don't develop because it gives legs straight In tennis your foot muscles don't developed cause it's flexing arm
It is called reaction time