species - a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring., natural selection  - individuals with characteristics most suited to the environment are more likely to survive and reproduce, Charles Darwin - English naturalist, geologist and biologist, widely known for his contributions to evolutionary biology, selection pressures - The factors in an organism’s environment which affect its survival, geographic isolation - species, or a population of a species, becomes separated by a physical barrier, speciation - The lineage has split now that gene flow cannot occur between the populations, adaptation - A genetic trait that helps an organism survive in its environment, behavioural adaptation - A behaviour or action that helps an organism survive, genetic diversity - The amount of genetic variation in a population,

Evolution Glossary 1

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