The total perimeter is 2 5/6
Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the capillaries, into the blood. Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body.
Answer:
ummmmmmmmm sir what i um well I think G.o.o.g.l.e would be your friend on that one
Answer:
Build homes and stable environments for people to live in during the bad weather.
