Biology GCSE B1b All topics to do with AQA Biology GCSE B1b unit 3.5 / 5 based on 4 ratings ? BiologyGCSEAll boards Created by: jessicaCreated on: 20-02-11 20:40 Evolution is... gradual change in heritable traits within a population over many generations 1 of 3 the greenhouse gases are: methane, carbon dioxide, nitrous oxide, water vapour 2 of 3 humans have... 46 chromosomes 3 of 3
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