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Deoxygenated blood flows from the vena cava into the right atrium, through the tricuspid valve into the right ventricle. When the ventricles contract blood is forced through the pulmonary valve into the p...

An increased heart rate increased the blood flow throughout the body meaning more oxygen can be supplied to the muscles and lactic acid and CO2 can be removed from the body preventing a toxic build up.

By factorising we're attempting to simplify this expression. When we factorise quadratics, typically this will result in two brackets. The content of these brackets, can be simply worked out with trial ...

There are 4 common kinds of stage. They are Proscenium Arch stage, Thrust stage, Traverse stage and 'in the round' stage. Proscenium Arch (PA) stages are usually the biggest and are most commonly used for...

A root of a function is where the function equals zero. So to begin to solve we must set the function to equal zero.x^2-5x+6 = 0If the question didn't make it clear already, you should be able to identif...