Vessels that carry blood back to the heart?
need food and oxygen to live?
the thin-walled tube which carries air from the nose and mouth into the lungs?
the liquid part of blood left over after clotting has taken place?
to stop bleeding?
carry oxygen to the cells and take carbon dioxide away?
the body fight infection?

Life expectancy in the united states is (76.4 for men and 81.1 for women). life expectancy is not the same as healthy life expectancy. healthy life expectancy is the number of years a person is expected to live in this number is obtained by subtracting years spent in poor health from overall life expectancy. the world health organization (who) calculates healthy life expectancy in 194 countries. the united states ranks twenty-ninth in the world using this measurement, with an average of of healthy life expectancy. singapore ranks number one (76 years), and japan is number two (75 years).

Which is a physical sign of stress? a: unexplained euphoria b: feelings of invincibility c: inability to sleep d: visual hallucinations

Signs of a sprain might include: a deformed appearance immobility a grinding sensation swelling