Evolution

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What is evolution?

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Evolution is the process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

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True or False: Humans evolved from chimpanzees.

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False. Humans and chimpanzees share a common ancestor but evolved separately.

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What does 'survival of the fittest' mean?

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It refers to the idea that those organisms that can survive and reproduce in their environment are the most successful.

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What are analogous structures?

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

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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, even if they have different functions.

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What is genetic variation?

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Genetic variation refers to the differences in DNA among individuals within a population, which is essential for evolution.

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Why are mutations important in evolution?

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Mutations introduce genetic variation, which is necessary for a population to evolve.

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What is a vestigial structure?

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A vestigial structure is a body part that has lost its original function through the course of evolution.

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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 a common ancestor?

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