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Evolution Chapter 10

TermDefinition
evolution process of biological change by descendants come to differ from their ancestors, change over time
species group of organisms that can reproduce and have fertile offspring
fossils traces of organisms that existed in the past
catastrophism natural disasters shaped landforms and caused species to become extinct
gradualism idea that landforms were shaped by very slow changes over a long period of time
uniformitarianism same processes that shaped landforms in the past also shaped landfroms today, uniform or the same through time
variation differences in physical traits among individuals in a group of organisms
adaptation feature that allows an organism to better survive in its environment
artificial selection humans select individuals with traits they desire and then breed them to produce more with those traits
heritability ability of a trait to be passed down for 1 generation to the next
natural selection process in which individuals that have inherited beneficial adaptations produce more offspring than others, naturally
population all the indivuals of a species that live in an area
overproduction organisms have more offspring that can survive, results in competition among offspring
descent with modification more individuals will have the trait in every following generation as long as the environment stays the same
fitness measure of the ability to survive and reproduce
biogeography study of the distribution of organisms around the world
homologous structures features that are similar in structure, but are different in function
analogous structures structures that perform a similar function but are not similar in origin
vestigial structures small leftover organs or structures that had a function in an early ancestor
paleontology study of fossils or extinct organisms
Created by: amypritt
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