A4.1

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evolution
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the cumulative change in heritable characteristics of a population over generations
darwinism
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species have their own set of heritable differences which have acumulated gradually over time
lamarkism - TOTALLY NOT TRUE
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organism’s aquired characteristics through their lifetime and passed them to their offsprings
Homologous structures (morphological)
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are anatomucal features showing similarities in structure, but difference in faction. common ansestor
Analogous structures
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analogous features showing differences in structure but similarities in function. no recent common ansestor
divergent evolution
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the process of 2 or more species evolving from a common ansestor by accumulating differences, becoming more distinct from each other over time
covergent evolution
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the process by which similar traits arise in unrealted species (not a recent common ansestor)
selctive breeding (experimental)
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a process of breeding organisms together for a desired traits. can occur naturally or guided by humans
Teosinte -> Maize
artificial selection
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human intervention
genetics (molecular level)
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DNA changes occur with evilution. Over time organisms start changing along with genetics
extinction
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when the last individuals of the species dies out
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