The Theory of Evolution

The hypothesis that evolution occurs at a rapid pace, separated by periods of no change,

• was supported by Darwin

• is known as punctuated equilibrium

• is supported by many transitional forms in the fossil record

• was proposed by Lyell

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The number of individuals that possess favorable characteristics will increase in a population

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The evolution of beak sizes in Galapagos finches is a response to...

• how finches use their beaks

• what type of seed is availble

• whether the populations interbreed

• the nutritional content of the seeds

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According to Darwin, evolution occurs...

• in response to use or disuse of a characteristic

• by punctuated equilibrium

• by natural selection

• in an individuals timeline

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Natural selection causes...

• changes in the environment

• plants and animals to produce more offspring than can survive

• changes in the frequency of certain alleles in a population

• all of the above

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The traits of individuals best adapted to survive become more common in each generation because...

• offspring without those traits do not survive

• the alleles responsible for those traits increase through natural selection

• those individuals do not breed

• natural selection does not effect well adapted individuals

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The process of species changing slowly and consistently

In the study of the bacteria that cause tuberculosis, scientists have learned that...

• the bacteria have become more sensitive to antibiotics due to evolution

• patients are allergic to antibiotic treatment

• the bacteria have become resistant to antibiotics due to natural selection

• patients frequently die from antibiotic treatment

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Natural selection is the process by which...

• the age of Earth is calculated

• organisms with traits well suited to the environment survive

• acquired traits are passed from one generation to the next

• all of the above

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Similar bone structures between species is known as...

• vestigial structures

• divergent structures

• homologous structures

• embryonic structures

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