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History is all about evaluating and critically analysing events and historical happenings. Including historiography in essays is very simple - you only need include an idea and the name of the historian o...

The dopamine hypothesis of schizophrenia states that symptoms may be caused by an excess of dopamine in the mid-brain and a reduction in dopamine in the prefrontal cortex. This hypothesis came from the fi...

There are physical conditions required for the formation of a glacial corrie to take place. For the processes to begin, snow must collect in a naturally occurring hollow on the side of a mountain. The hol...

diagram of the covalent structure of diamond- allotrope Each carbon has 4 covalent bonds- what are covalent bonds? these are when two atoms share a pair of electrons. These are very strong bonds, causing ...

cell wall- this is strong, due to the cellulose nucleus- what is the person of a nucleus- contains genetic information vacuole- sap filled membrane that gains water and loses water, giving the plant cell ...