Answer:
If two runners take the same amount of time to run a mile, they have the same velocity. Velocity is defined as "the rate at which an object changes its position."
Pay watching the changes in your body
Answer:
the esophageal sphincter
Explanation:
This muscle opens and lets food and liquid enter the stomach and closes to prevent the food and liquid from leaking back into the esophagus, however if it is not working properly it could open and close at the wrong times
Answer:
If it occurs in the coronary arteries, the end result could be a myocardial infarction (MI) or heart attack. The third way that periodontal disease can affect systemic health is that inflammation associated with periodontal disease may stimulate a systemic inflammatory response within the body.
Explanation: https://periolinks.com/2015/09/30/how-does-periodontal-disease-affect-systemic-health-a-simple-answer-to-a-complex-question/
(This link is where I got my answer)
