Evolution and Natural Selection Review

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What is evolution?

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Evolution is the process through which species change over time through variations and natural selection.

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What is natural selection?

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Natural selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

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What is variation in the context of evolution?

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Variation refers to the differences in traits among individuals in a population.

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Why is genetic variation important for a species?

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Genetic variation increases a population's ability to adapt to changing environments.

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What role do environmental changes play in evolution?

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Environmental changes can create new challenges that drive natural selection and lead to evolution.

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What is a common ancestor?

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A common ancestor is an early species from which different species have evolved.

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What evidence supports the theory of evolution?

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Fossils, genetic similarities, and anatomical structures provide evidence for evolution.

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What is the significance of homologous structures?

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Homologous structures are similar in different species, indicating a common ancestry.

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What is the difference between artificial selection and natural selection?

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Artificial selection is human-directed breeding for specific traits, while natural selection occurs without human intervention.

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What is adaptation?

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Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment.