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 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 are homologous structures?

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Homologous structures are anatomical features in different species that share a common ancestry, even if they have different functions.

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What is the significance of vestigial structures?

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Vestigial structures are remnants of organs or structures that had a function in early ancestors but are no longer useful in the current organism.

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How long does evolution typically take?

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Evolution can take thousands to millions of years, with 10,000 years being a common timeframe for significant changes.

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What does Darwin's theory of evolution propose?

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Darwin's theory of evolution proposes that species change over time through the process of natural selection.

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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.

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What is a fossil?

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A fossil is the preserved remains or traces of an organism that lived in the past, providing evidence for evolution.

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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, providing raw material for natural selection.

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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.