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There are several facts that could prove that mitochondria and plastids - eukaryotic organella descend from prokaryotic organisms. One of the arguments is that the metioned organella posses their own DNA ...

Gothic Style in architecture has several characteristics which help us understand and recognize a gothic building from a romanic building, for example.

the main characteristics are:

• po...

Questions may be given to you asking 'how far' you agree with something, and these types of question are good because it allows you to offer a broad range of points for and against a topic. For example, i...

Structure is actually the most important part of your English essay; if your thoughts are not presented clearly, then the examiner will not follow your argument. Here are some guidelines to make sure that...

First expand each set of brackets:

(3x - 6) - (2x - 4)

Then simplify:

3x - 6 - 2x - (-4) = x - 2