Darwin, fossils
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| species | a group of similar organisms that can mate with each other and produce fertile offspring.
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| fossil | the preserved remains or traces of an organism that lived in the past.
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| adaptation | a trait that helps an organism survive and reproduce in its environment
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| scientific theory | a well tested concept that explains a wide range of observations.
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| natural selection | individuals that are better adapted to their environments are more likely to survive and reproduce than other members of the same species.
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| variation | a difference between individuals of the same species.
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| comparative anatomy | the comparison of the structures of different organisms.
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| homologous structures | similar structures that a related species have inherited from a common ancestor.
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| mold | a hollow area in sediment in the shape of an organism or part of an organism.
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| cast | a solid copy of a shape of an organism
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| petrified fossil | fossils in which materials replace all or part of an organism.
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| trace fossil | provides evidence of the activities of ancient organisms.
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| paleontologist | scientists who studies fossils.
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| gradualism | proposes that evolution occurs slowly but steadily.
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| punctuated equilibria | accounts for the gaps in the fossil record.
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| habitat | the specific environment that provides the things the organism needs to live grow and reproduce.
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| extinct | if no members of that species are still alive.
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| classification | is the process of grouping things based on their similarities.
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| taxonomy | a scientific study of how living things are classified.
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| binomial nomenclature | the system for naming organisms in which each organism is given a unique two part scientific name.
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| genus | a classification grouping that contains similar closely related organisms.
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| prokaryote | organisms whose cells lack a nucleus.
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| eukaryote | organisms with cells that contain nuclei.
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| branching tree diagram | shows portable evolutionary relationships among organisms.
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| shared derived characteristic | a characteristic usually homozygous structure shared by all organisms in a group.
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| evolution | the gradual change in a species over time.
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Created by:
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