Evolution Review

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What is fitness in the context of evolution?

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Fitness refers to the ability of an organism to survive and reproduce in its environment.

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What is a dichotomous key?

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A dichotomous key is a tool that allows the identification of organisms based on a series of choices that lead the user to the correct name of a given item.

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What is the difference between scientific names and full classification of organisms?

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The full classification of organisms includes more categories than their scientific names, which typically consist of the genus and species.

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What type of characteristics are best for creating a dichotomous key?

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Characteristics that are reliable and convenient to observe.

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How does natural selection work?

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Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

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What is adaptation in evolutionary biology?

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Adaptation is a trait that helps an organism survive and reproduce in its environment.

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What is mutation?

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Mutation is a change in the DNA sequence of an organism's genome, which can lead to new traits.

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What is the role of genetic variation in evolution?

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Genetic variation provides the raw material for natural selection to act upon, leading to evolution.

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What is the significance of the fossil record in understanding evolution?

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The fossil record provides evidence of past life forms and shows how species have changed over time.

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What is speciation?

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Speciation is the process by which new species arise from existing species.