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WJEC - A/AS Level A level Biology
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5.2 | Genetic variation is the raw material for evolutionary change. | (c) Human influence on the environment has created new selection pressures as illustrated by warfarin resistance in rats, and antibiotic resistant forms of bacteria. Artificial selection. Biodiversity. Reasons for species becoming endangered and causes of extinction. The conservation of gene pools in the wild and in captivity. | 2 |
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