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Many (Not all) neurons are myelinated by schwann cells. The myelination covers the neuron with a fatty layer with small gaps between each schwann cells. These small gaps are called nodes of ranvier. When ...

You can write a personal statement is several difference ways, but I would argue that the best ones are those which demonstrate your passion for the subject which you applying for. Why do you want to do t...

Firstly you need to have a good question which you want to answer! This may sound obvious but think about it. If your question is too broad you will have to read too much stuff, you to specialise and have...

The first thing that you need to do is check that you are answering the question! This means writing an answer that directly refers to the words of the question. Its this that makes the difference between...

First we must multiply out the brackets, using FOIL (first, outer, inner, last). This gives f(x) = -x^3 + 5x^2 - 3x + 15. Alternatively you could leave the brackets as they are, and use the product rule t...