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6 Cards in this Set
- Front
- Back
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What is Evolution? |
-the permanent change in the genetic frequencies of a population -modern theory states that all living organisms share a common ancestor that resembles what what exists today as bacteria |
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What is Macroevolution? |
Macroevolutionrefers to large scale evolutionary changes that result in the formation of newtaxonomic groups. |
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What is microevolution? |
Microevolutionrefers to small scale changes in a population over a few generations. This isusually a result of mutation, gene flow, genetic drift, or natural selection.Typically, these changes can be observed. |
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What is artificial selection? |
Theselected breeding of plants or animals for specific traits. Evidence shows thatthe phenotypic characteristics of a species can change over generations as aresult of this practice. |
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What is a fossil? |
A fossilrefers to any part or impression of an organisms that survives after its death.They are most commonly found in sedimentary rock, and comprise of hard mineralrich remains such as bones, teeth or shells. |
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