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31 Cards in this Set
- Front
- Back
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What is evolution |
The accomilating of genetic changes within population overtime |
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Where does evolution occur |
In population |
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Are natural selection random |
No |
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What is artificial selection |
Things that man came up with |
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Who came up with the theory of natural selection |
Darwin |
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Who is the father of taxonomy |
Linnaeus |
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What is taxonomy |
The science of naming and classifying organisms |
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What did Linnaeus create |
Binominal nomenclature |
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Describe the binominal nomenclature |
Two part naming system |
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What are the two parts to the binominal nomenclature |
Genus, species |
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How are genus and species different |
Genus is capitalized and written first. species is lower case and written last |
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What are the organisms in the taxonomic hierarchy |
Domain, kingdom, phylum, class, order, family, genus, species |
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What is the least specific organisms |
Domain |
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What is the most specific organism |
Species |
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What are the three domains of life? |
Archage, bacteria,eukarya |
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What did covier say |
That they are a different layers, at the bottom is the oldest |
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What did Lyell say |
The things that shaped the earth in the past are still shaping the earth today |
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Who came up with the principles of population |
Malthus |
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What are the four observations that Darwin made |
1: there was variation.,2: differential reproductive success,3; over production,4: struggle for existence |
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Describe homologyl |
Features deprived from a same structure in a common ancestor |
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Describe analogous structure? |
Have no shared ancestors |
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What is genetic drift |
Random change in allele frequency in a population |
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What does genetic drift do |
Decrease genetic variation |
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What are the two cases of genetic drift |
Bottlenecks, founder founder effect |
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What are the three types of selection |
1: stabilizing selection, 2: directional selection,3: disrupts selection |
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What does stabilizing selection do |
Narrows the bell curve |
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What is specialization |
Evolution of a new species due to reproductive isolation occurring |
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What are the two types of reproductive isolation |
Prezygotic isolating , postzygotic isolating |
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What happens in adaptive radiation |
Many species evolve from an ancestrol species |
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Describe natural selection |
The process in which organisms best adapted to their environment tend to survive more than those less adopted |
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What two mechanisms drive evolution |
Genetic drift, and natural selection |
