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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True or False: Individuals undergo evolution.

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False. Evolution occurs at the population level, not at the individual level.

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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 evolution, such as the pelvic bone in whales.

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What is speciation?

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Speciation is the process by which a population splits and accumulates different genes, leading to the formation of new species.

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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 analogous structure?

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Analogous structures are body parts in different species that have similar functions but do not share a common ancestor, like the wings of bats and insects.

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What is a homologous structure?

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Homologous structures are body parts in different species that share a common ancestry, such as the forelimbs of humans and whales.

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What is the difference between natural selection and artificial selection?

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Natural selection occurs naturally based on environmental pressures, while artificial selection is the intentional breeding of organisms by humans.

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What is genetic drift?

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Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.

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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.