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-Change of allele frequencies in a population over time |
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-The process by which evolution occurs |
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-Group of interbreeding organisms at the same time and place -Evolution does not occur at the individual level!!! |
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-Influenced by others -Combined travel & OBSERVATION |
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-Change in DNA -Caused by mutagens or random |
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-Random changes in allele frequency |
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-Sharing of genetic information -Essential to diversity |
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Rules for Natural Selection |
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1. Variation for a trait 2. Variation must be inheritable 3. Differential reproductive success Species produce excess numbers Competition Some are more successful or FIT |
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-Features of organisms that allow them better survival |
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-Producing cows with higher milk production |
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-Selective pressure on fish |
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-Evaluate amount of certain radioactive isotopes present in fossils |
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-broke apart in Mesozoic era |
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-Distribution patterns of living organisms |
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-Eye sockets with no eyes in cave fish -Molars in vampire bats -Pelvic bones in whales and pythons |
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