Evolution Review

Over time, adaptions can lead populations to experience 

• environmental changes
• genetic changes
• geological changes
• extinction

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what did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?

• different species on different islands
• all species on one of the islands
• identical species on all the islands
• the same species as North America

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In natural selection, the selective agent is the

• humans
• mutations
• breeders
• environment

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All rabbits living in a particular area would be an example of a(n)

• population
• species
• fossil
• individual organism

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Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

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Mutations are important because they bring about

• death of the organism in which they develop
• genetic variation needed for a population to evolve
• benefits for the individual, not for the population
• Hardey-Weinberg equilibrium within a population

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What is the term for a feature that allows an organism to survive better in its environemtn?

• variation

• adaptation

• homologous structure

• vestigial structure

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The process by which populations slowly change over time is called__________

• selective breeding
• adaptation
• sepeciation
• evolution

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Natural selection can best be defined as the _____.

• survival of the biggest and strongest in a population
• survival and reproduction of those in the largest area
• elimination of the smallest organism by the biggest
• survival and reproduction of those that are best adapted

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Natural selection is when ____________ decides who survives and who doesn't

• nature
• humans
• animals
• years

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