Evolution 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 process where organisms better adapted to their environment tend to survive and produce more offspring.

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What is an adaptation?

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

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How old is the Earth?

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The Earth is approximately 4.6 billion years old.

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What is antibiotic resistance?

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Antibiotic resistance is the ability of bacteria to survive and reproduce despite the presence of antibiotics.

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What role do mutations play 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 the significance of variation in a population?

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Variation provides the raw material for natural selection, allowing some individuals to survive better than others.

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What is selective breeding?

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Selective breeding is the process by which humans breed plants and animals for specific traits.

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What is the difference between a theory and a hypothesis in science?

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A theory is a well-substantiated explanation of an aspect of the natural world, while a hypothesis is a testable prediction.

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What evidence supports the theory of evolution?

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Evidence includes fossil records, genetic similarities, and observed instances of natural selection.