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Equation of curve is: y = y =3x² - x³To find area need to integrate between 0 and 3So integrating each term gives x³ - x⁴/4 + ...

The crucial thing with a "compare and contrast" question is that you have to give both similarities and differences to get full marks. Firstly, both of these proteins are chains...

Gas exchange occurs in the lungs where oxygen enters from the air and diffuses into the blood stream and carbon dioxide in moves the opposite direction. Oxygen is needed for respiration by the body, for ...