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Natural Selection
Question | Answer |
---|---|
natural selection | the better adapted survive and reproduce |
artificial selection | breeding for certain traits |
evolution | change in species over time |
species | group of similar organisms that can mate and produce fertile offspring |
scientific theory | well tested concepts that explain observations |
overproduction | produce more offspring than can survive |
struggle to survive | some organisms survive but some don't |
genetic variation | organisms have different traits |
selection | organisms with adaptation for the environment survive and reproduce |
Darwin's finches | bird's beaks are different shapes and sizes based on climate and food source |
peppered moths | more moths were light but over time the darker moth population increased |
rock pocket mice | more mice were light but over time the darker colored mice population increased |
survival of the fittest | another term for natural selection |
adaptation | a change in an organism over time |
variation | must be present for natural selection to occur |
mutation | change in DNA; can be beneficial, neutral, or harmful |