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·   Myelin sheath is an insulating layer of fatty material, composed of Schwann cells wrapped tightly around the neurone.·   Sodium and potassium ions cannot diffuse through this fatty layer.·   In betwee...

The prologue, a fourteen-line sonnet, introduces the theme of violence between two families through the imagery of bloody hands: ‘where civil blood makes civil hands unclean’. The fact that blood will be ...

The most important thing before trying to apply the AO's to your essay is to make sure you have an in-depth understanding of what each objective looks like in your writing. In your last essay, use highlig...

To develop a character, first look closely at the information given to you in the text. There may even be a character description with their age, their relationships etc - if so, start there. If not, anal...

Firstly, an expression for dy/dx needs to be found to allow us to find the gradient of the normal. As a normal is a straight line, the equation y-y₁=m(x-x₁) can be used to find its e...