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21 Cards in this Set
- Front
- Back
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Evolution |
The process of change by which new species develop from preexisting species of the time at the genetic level the process in which inherited characteristics within population change 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 there environment survive and reproduce more successfully than less well adapted individuals |
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Adaption |
The process of becoming adaptive to an environment an anatomical physiological or behavioral change that improves a populations ability to survie |
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Fossil |
The trace or remains of organisms that lived long ago most commonly preserved in a 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 a new species as a result of eveolution |
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Population Genetics |
The study of frequency and interactions of alleles and genes in a population |
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Normal Distribution |
A distribution of numerical data whose graph forms a bell shaped curve that is symmetrical about the mean |
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Genetic Equilibrium |
A state in 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 particular set of population can no longer interbreed to produce future generations of offspring |
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Subspecies |
A taxonomic classification below species that groups organisms that live in different geographical areas differ morphologicaly from other populations of the species but can interbreed with other population of the species |
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Divergence |
The evolutionary tendency or process by which animals or plants that are descended from a common ancestor evolve into different forms when under different living conditions |
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Speciation |
The formation of a new species as a result of evolution |
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Species |
A group of organisms that are closely related and can mate to produce offspring fertile offspring also the level of classification below a genus and above subspecies |
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Extintion |
The death of every member of a species |
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Genetic equilibrium |
A state in which that allele frequencies of a population remain in the same ratios from one generation to the next
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Gene flow |
The movement of genes into or out of a population due to interbreeding |
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Genetic drift |
The random change in alleles frequencies in a population |
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Stabilizing selection |
A type of natural selection in which the average from a trait is favored and becomes more commomn |
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Disruptive Selection |
A type of natural selection in which two extreme forms of traits are selected |
