Evolution Vocabulary

characteristics or conditions that genetically passed down from one's parents or ancestors to their offspring

• Natural selection

• inherited

• fossil record

• population

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inherited trait that is selected for over time because it allows organisms to better survive in their environment

• Fossil record

• bottleneck effect

• adaptation

• natural selection

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history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock.

• natural selection

• evolution

• adaptations

• Fossil Record

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all the inhabitants of a particular town, area, or country

• evolution

• population

• fitness

• bottleneck effect

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change in a species over time; process of biological change by which descendants come to differ from their ancestors

• evolution

• fossil record

• population

• bottleneck effect

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genetic drift that results from an event that drastically reduces the size of a population

• bottleneck effect

• fitness

• biogeography

• natural selection

body part that is similar in function as a body part of another organism but is structurally different

• homologous structures

• analogous structures

• vestigial structures

• natural selection

remnants of an organ or structure that functioned in an earlier ancestor

• homologous structures

• analogous structures

• vestigial structures

• natural selection

body part that is similar in structure on different organisms but performs different functions

• homologous structures

• analogous structures

• vestigial structures

• natural selection

measure of an organism’s ability to survive and produce offspring relative to other members of a population

• natural selection

• fitness

• adaptation

• population

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