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A healthy artery is wider and has no blockages. The lumen (which is the hole in the centre of the artery), is open and clear. This means there is more blood flow. An artery of a person suffering from coro...

Often one of the most difficult aspects of writing a good essay is nailing its structure. It’s very easy to have great points laid out in a way that’s confusing and hard to pin down – and a well-structure...

2x²+4x+6x+12=2x²+10x+12

Below is 2 examples of questions that you could be asked. During the session, I will run through on the whiteboard, a good method of completing this style of question. _GaF₃ + _Na₃PO...

Red blood cells have a biconcave shape and an absence of a nucleus in order to increase the area for which it can carry oxygen around the body and remove carbon dioxide from the body. Red blood cells cont...