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Homeostasis is the maintenance of internal environments within a set narrow range (based around a set point) which is critical for survival. The environment remains relatively stable so reactions can occu...

If asked to give the units of some complicated quantity in more basic units, try to think of a physical equation you know that relates the complicated quantity (i.e. energy, units J) to other quantitie...

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• Content — AO2 (26 marks [13 marks per essay]) - illustration of in-depth knowledge of topic/text; substantiated and relevant points; coherent and well-integrat...