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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Descent with modification; the idea that living species are descendants of ancestral species that were different from the present-day ones
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evolution
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A preserved remnant or impression of an organism that lived in the past.
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fossils
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A rock layer formed when new layers of sediment cover older ones and compress them
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strata (stratum)
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The scientific study of fossils
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Paleontology
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Inherited characteristic of an organism that enhances its survival and reproduction in a specific environment.
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adaptations
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A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than others
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natural selection
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The selective breeding of domesticated plants and animals to encourage the occurrence of desirable traits
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artificial selection
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dogs are a great example
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Similarity in characteristics resulting from a shared ancestry
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homology
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Structures in different species that are similar because of common ancestry
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homologous structures
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A feature of an organism that is a historical remnant of a structure that served a function in the organism’s ancestors
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vestigial structures
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are no longer useful in todays organisms (ex: human spleen)
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a diagram that reflects evolutionary relationships among groups of organisms
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evolutionary tree |
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The evolution of similar features in independent evolutionary lineages
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convergent evolution
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Having characteristics that are similar because of convergent evolution, not homology
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analogous
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The supercontinent that formed near the end of the Paleozoic era, when plate movements brought all the landmasses of Earth together
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pangaea
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Referring to a species that is found no where else in the world
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endemic
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The scientific study of the past and present geographic distributions of species
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biogeography
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