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12 Cards in this Set
- Front
- Back
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evolution |
the process of change by which new species develop from preexisting species over time |
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artificial selection |
the human practice of breeding animals or plants that have certain desired traits |
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natural selection |
the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less adapted individuals do |
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adaption |
a trait that improves an organism's ability to survive and reproduce |
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fossil |
the trace or remains of an organism that lived long ago most commonly perserved in sedimentary rock |
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homologous |
describes a character that is shared by a group of species because it inherited from a common ancestor |
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speciation |
the formation of new species as a result of evolution |
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population genetics |
the study of the frequency and interaction of alleles and genes in populations |
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normal distribution |
a line graph showing the general trends in a set of data of which most values are near the mean |
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genetic equilibrium |
a state which the allele frequencies of a population remain in the same ratios from one generation to the next |
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reproductive isolation |
a state in which a population can no longer interbreed with another population to produce future generations |
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subspecies |
a taxomonic classification below the level of species refers to populations that differ from but can interbreed with other populations of the same species |
