Evolution Review

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What is Natural Selection?

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Natural Selection is the process by which organisms that are better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.

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What is an adaptation?

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An adaptation is a trait that helps an organism survive and thrive in its environment.

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What do closely related organisms have in common?

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Closely related organisms have very similar DNA sequences.

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What are homologous structures?

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Homologous structures are anatomical features in different species that share a common ancestry but have different functions.

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Why are advantageous traits more likely to be passed on?

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Advantageous traits are more likely to be passed on because they increase the chances of survival and reproduction.

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What is genetic drift?

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Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.

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What is gene flow?

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Gene flow is the transfer of genetic material between populations, which can increase genetic diversity.

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What are vestigial structures?

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Vestigial structures are anatomical features that have lost most or all of their original function through evolution.

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What is mutation?

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A mutation is a change in the DNA sequence that can lead to new traits in an organism.

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What is adaptive radiation?

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Adaptive radiation is the process by which organisms diversify rapidly into a variety of forms to adapt to different environments.