Evolution

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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 are the three main types of adaptations?

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Physiological, Structural, and Behavioral adaptations.

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What is a behavioral adaptation?

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A behavioral adaptation is a change in behavior that helps an organism survive in its environment.

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What is natural selection?

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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 are vestigial structures?

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Vestigial structures are body parts that have lost their original function through evolution, such as the human appendix.

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What is a homologous structure?

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Homologous structures are body parts in different species that have a similar structure but may serve different functions, indicating a common ancestor.

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How does DNA relate to evolutionary relationships?

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Organisms that are closely related share very similar DNA sequences, indicating a common ancestry.

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What is the significance of fossils in evolution?

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Fossils provide evidence of past life forms and show how species have changed over time.

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What is the role of mutations in evolution?

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Mutations are changes in DNA that can lead to new traits, which may be beneficial, harmful, or neutral in terms of survival.

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What is speciation?

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Speciation is the process by which new species arise from existing species due to evolutionary changes.