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15 Cards in this Set
- Front
- Back
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Evolution
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the process by which species have changed over time.
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Geologic Evolution
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changes that have occured to earth itself.
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Biologic Evolution
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the change in inherited characteristics of a population from generation to successive generation.
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Fossil Record
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a collection of fossils used to represent Earth's history.
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Adaptive Value
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any traits that helps an organism survive and reproduce under a given set of environmental conditions.
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Variation
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an instant change
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Genetic Variation
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the normal differences found among offspring.
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Extinction
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the disappearance of all members of a species from earth.
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Geologic Time
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Earth's history as revealed by layers of rock.
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Mutation
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any alteration in the sequence of DNA.
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Natural Selection
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the process by which the organism that are adapted to a specific environment survive and produce more offspring than organism that are not as well adapted.
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Overproduction
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the potential for a species to increase its numbers beyond the area's capacity.
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Theory
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an explanation, supproted by many observations, that can be used to accurately explain related occurrences.
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Relative Age
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relative dating-the age of a fossil is determined by the layer in which it is found in.
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Absolute Age
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absolute dating-age of the fossil is determined by radioactive dating technique.
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