SB4-natural selection and genetic modification 3.5 / 5 based on 5 ratings ? BiologyVariety of life and classificationGCSEEdexcel Created by: keyaan MartinCreated on: 29-04-17 11:59 What is evolution evolution is a gradual change in the characteristics of a species over time 1 of 9 How do fossils provide evidence for human evolution Fossils show how much, or how little, organisms have changed over time. 2 of 9 What is natural selection when a variation causes a certain species to cope with change then others, and more likely to survive 3 of 9 How does natural selection lead to evolution if natural selection happens over and over the evolved species will be better to adapt 4 of 9 How are organisms as five kingdoms animals (all multicellular animals) plants (all green plants) fungi (moulds, mushrooms, yeast) prokaryotes (bacteria, blue-green algae) protoctists (Amoeba, Chlorella and Plasmodium) 5 of 9 What are ways in which we create new breeds and varieties artificial selection, selective breeding and genetic engineering 6 of 9 Why do we genetically engineer organisms to adapt a organism to our needs 7 of 9 What are the risks of selective breeding some alleles come rare or disappear. all organisms in a farm would be all the same so higher risk of mass death 8 of 9 What are the risks of genetic engineering issues expensive, could have a unknown consequence to the enviroment 9 of 9
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