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Meiosis occurs to produce haploid gametes required for sexual reproduction. It promotes genetic diversity in 3 different ways: crossing over, independent assortment and random fertilisation.Crossing over ...

One argument in favour of Heath’s governments failure being down to unpopular policies was the Industrial Relations Act of 1971. Heath wanted to curb the power of the unions by introducing measures that w...

Arteries, carrying blood away from the heart have a thick muscular wall that is more elastic than fibrous tissues. This is elastic to cope with the high fluid pressure in the lumen and al...

    Firstly, planning and structure are very much key to your success in a history exam. Ensure that before you begin writing your exam response for a source-based question you have a clear argument in yo...

Enzymes are proteins that typically help to increase the rate of specific reactions in the body, each enzyme is specific to one or two substrates meaning that different enzymes help to increase the rate o...