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 common ancestor?

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A common ancestor is an ancestral species from which different species have evolved.

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What does 'survival of the fittest' mean?

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It refers to the idea that those individuals best adapted to their environment are more likely to survive and reproduce.

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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 body parts in different species that share a common ancestry, indicating divergent evolution.

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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 divergent evolution?

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Divergent evolution occurs when two or more related species become more dissimilar over time, often due to different environments.

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What is convergent evolution?

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Convergent evolution is when unrelated species develop similar traits due to similar environmental pressures.

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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 variation in a population?

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Variation refers to the differences in traits among individuals in a population, which can lead to natural selection.