I'm pretty sure it is 7.<span />
Having traveled through the arteries and capillaries, the blood have already lost considerable amount of pressure when it is to travel through the veins. The veins are composed of one-way valves as when the veins are squeezed, it pushes the blood to the valves.
Three Energy sources that can be used in houses is: Electricity, Solar Energy, Natural Gas/Propane/Heating Oil. The ideal energy source in my house I am sure that it is Natural Gas, We chose the source because it is a fossil fuel, never can run out. Also it is also classified as "Economical" and when you have Natural Gas it is easier to add appliances. But Natural Gas isn't perfect. When it is burned it gives off Carbon Dioxide and it is a big cause in the rise of Global Warming.
I Hope This Helped
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A
process in which glucose is broken down into two molecules of pyruvic acid
glycolysis
