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P.E.E is a simple way of answering essay questions. P.E.E stands for "Point, Evidence, Explaination". This very easy formula allows you to structure your answer, and therefore making it easier f...

In history you have no doubt come across, and had to use primary sources. Primary sources offer a wealth of information, but they do have their limitations. There are a number of reasons why you cannot ta...

The biological species concept classifies species as a group of actually or potentially interbreeding individuals. This means that any two individuals (well a male and female) within the gro...

Chirality (or optical isomerism) is a physical property of a molecule which has a non-superimposable mirror image. In other words, a molecule which, when reflected cannot be rotated in any way to make the...

Trying to differentiate between the use of these two tenses can often prove challenging for Spanish students. However, there are some key points that may help ...