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 is a homologous structure?

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

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What is an adaptation?

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An adaptation is a change in an organism that enhances its ability to survive and reproduce in its environment.

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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 fossil?

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A fossil is a remnant or trace of an organism from the past, preserved in rock or sediment.

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What is the significance of the fossil record?

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The fossil record provides evidence of the history of life on Earth and shows how species have changed over time.

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What is natural selection?

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

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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, which can lead to evolutionary changes.

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What is embryology?

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Embryology is the study of embryos and their development, which can provide insights into evolutionary relationships.

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What are analogous structures?

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Analogous structures are body parts in different species that serve similar functions but do not share a common ancestry.