Red blood cell antibodies may show up in your blood if you are exposed to red blood cells other than your own. Antibody serology tests check for the presence or level of specific antibodies in the blood.
-the burning of fossil fuel
-natural events
-waste in landfills
-agricultural activities
-mining operations
-etc
Answer:
Muscle fatigue <u>would</u> cause a person to feel a higher rating of perceived exertion.
