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Though everyone's writing is different, and many different kinds of essays can get a good mark, the mark scheme shows several things that make for a good essay, and that can easily be implemented. By foll...

All atoms are neutral because all atoms have the same number of protons as they have electrons. Atoms are made up of a nucleus and electrons that surround their nucleus in shells. The nucleus contains pro...

Hardy’s poetry can often be seen as melancholic. His use of imagery, such as in ‘Neutral Tones’, appeals to the passing of the seasons and a deadness in the landscape to evoke a sense of sadness and melan...

Stalin’s dictatorship had huge significance for the USSR. His five-year plans led to a massively increased industrial output, increasing the USSR’s exports and income. Yet this came with heavy costs, and ...

For DNA there are 4 types of bases: A, T, C, G.A codon is made from 3 bases, and codes for either an amino acid, or a stop.Mutation substitution means that one base is replaces by another base, eg: an...