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| a population of organisms that interbreeds freely and with no other populations |
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| breeders select for a desired characteristic |
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| process of change over time which existing populations of organisms develop from ancestral forms through modifications of their characteristics |
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| any record of a dead organism |
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unstable, nuclei decay at a steady rate
example: carbon 14 |
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| Darwin felt that organisms were shaped by their _____ |
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| The islands taht Darwin observed many different species of organisms |
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| characteristics taht are naturally occuring inheritable traits in a population |
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| the origin of species by means of natural selection |
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| organisms having adaptive traits survive in a greater numbers that those without |
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| type of island that the Galapagos are |
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| populations of a species changes as it is dispersed within different habitats |
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| a new species forms describes |
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| ground , warbler, and tree |
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| name the basic 3 types of finches on galapagos islands |
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| name 2 characteristics that separated the finches |
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COMPARATIVE ANATOMY/ EMBRYOLOGY
if organisms derivedd from an ancestor they should have similar ____ |
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| same evolutionary origin, now differing in structure and function |
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| structures present but no longer useful |
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| having different ancestors but having similar adaptations |
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| while these are devolping, scientists can look at similarities |
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process of pre-eukaryotic bacteria taking in prokaryotic bacteria
example mitochondria |
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| type of rock most fossils are found in |
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| this scientist ahd an experiment taht convinced al scientists that spontaneous generation does not occur |
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| similar form and function but have different evolutionary origins |
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| in molecular biology, can study progressive evolution by look at ____ |
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