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Firstly we need to make sure we understand the question and do this by defining the key elements:
Prime number: A number that can only be divided by itself and 1 to give a whole numb...

Firstly make sure you read the extract. Once initially, just to understand the scene and then again with a pen or a highlighter to underline bits you plan on using in your essay. Take about 5 minutes to a...

DNA and RNA are structurally almost identical, but there are a number of key differences. The 'D' in DNA stands for deoxyribose - the sugar molecule that gives DNA a stable helical conformation (called a ...

The main difference between eukaryotes and prokaryotes is that eukaryotic cells contain membrane-bound organelles (this includes a nucleus). Eukaryotes can be a single-celled or multi-celled organisms, su...