Evolution and Natural Selection

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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 are homologous structures?

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

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What is a common ancestor?

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A common ancestor is a species from which two or more different species have evolved.

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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, not limited to bones.

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Who proposed the theory of evolution by natural selection?

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Charles Darwin proposed the theory of evolution by natural selection.

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What is the significance of variation in a population?

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Variation in a population is crucial for natural selection, as it provides the raw material for evolution.

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What does 'survival of the fittest' mean?

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'Survival of the fittest' refers to the idea that individuals best adapted to their environment are more likely to survive and reproduce.

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What is adaptation?

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

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What is the difference between artificial selection and natural selection?

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Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.