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bio- ch 14

QuestionAnswer
evolution process of change in the inherited characteristics within populations over generations such that new types of organisms develop from preexisting types
another name for rock layers strata
catastophism idea promoted by cuvier; sudden geologic catastrophes caused extinction of large groups of organisms at certain points in the past
uniformitarianism promoted by lyell; the thought that the geologic processes have changed the shape of the earth's surface in the past continue to work in the same ways
lamarck's ideas on evolution individuals could acquire traits during their lifetimes as a result of experience or behavior and pass them on
darwin's ideas on evolution descent with modification- all species descended from common ancestors and natural selection' is the mechanism for evolution
what book did Darwin write? On the origin of species
adaptation changes in traits of populations over time
how to tell relative age of a fossil by referring to records of known fossils
how to determine absolute age of a fossil radiometric dating- determines the time since formation of rock surrounding
analogous structures similar in function but have different evolutionary origins
homologous structures have a common evolutionary origin
vestigial structure shares ancestry with a species that has a functional form of the structure
phylogeny the relationships by ancestry among groups of organisms
convergent evolution organisms that are not closely related resemble each other because they have responded to similar environments
divergent evolution related populations become less similar as they respond to different environments
adaptive radiation divergent evolution of a single group of organisms in a new environment
artificial selection human breeder chooses individuals that will be in next generation
example of coevolution increasing resistance to antibiotics
what 3 things must happen in order for evolution to occur? genetic variation, high population, and struggle for survival
Created by: gschultz2028
 

 



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