mr.josephs work

1. Arteries,veins, capillaries,arteriole, and venule

2.Arteries have thick, elastic walls that hold the pumping of blood.The wall expands when blood in pumped into it and then goes to its original size.bCapillary walls are only one cell thick. Gas and nutrient molecules pass easily through their thin wallsThe walls of veins are much thinner than the walls of arteries. Veins are farther from the heart and exposed to lower pressures. Veins are larger in diameter than arteries.
3.
A person's blood type is determined by The "ABO blood" group system is used to determine blood type.