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AP Bio Chapter 22

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Words
Definitions
evolution   the processes that have transformed life on Earth from its earliest forms to the vast diversity that characterizes it today  
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natural selection   a mechanism for evolution, when the popuation of an organism can change over time as a result of individuals with certain heritable traits leaving more offspring than other individuals  
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evolutionary adaptations   inherited characteristics that enhance an organisms ability to survive and reproduce in a particular environment  
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natural theology   a philosophy dedicated to discovering the Creator's plan by studying nature  
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taxonomy   Carolus Linnaus, the branch of biology concerned with naming and classifying the diverse forms of life, binomial system  
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fossils   relics or impressions of organisms from the past,mineralized in rock  
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sedimentary rocks   formed from the sand and mud that settle to the bottom of the seas, lakes, and marshes  
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paleontology   the study of fossils, largely developed by Georges Cuvier  
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catastrophism   a speculation that each boundary between strata corresponded in time to a catastrophe such as a flodd or drought that had destroyed many of the species living there at that time  
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gradualism   James Hutton, holds that profound change is the cumulative product of slow ut continuous processes  
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uniformitatrianism   Charles Lyell, the idea that geological processes have not changed throughout Earth's history  
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descent with modification   Biological evolution is this, encompasses small-scale evolution (changes in gene frequency in a population from one generation to the next) and large-scale evolution (the descent of different species from a common ancestor over many generations).  
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artificial selection   the breeding in domesticated plants and animals  
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biogeography   distribution of many species  
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homology   similarity in characteristics resulting from common ancestry  
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homologous structures   such anatomical signs of evolution  
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vestigial organs   structures of marginal, if any importance to the organism  
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ontogeny   the development of an individual organism  
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phylogeny   a replay of the evolutionary history of the species  
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