Evolution/Natural Selection

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What is artificial selection?

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Artificial selection is the process by which humans breed plants and animals for specific traits, such as crossing a labrador and a poodle to create a labradoodle.

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What is genetic drift?

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Genetic drift is the change in the allele frequency of a population due to random chance.

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What is a vestigial structure?

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A vestigial structure is an anatomical feature that no longer seems to have a purpose in the current form of an organism.

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What are analogous structures?

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Analogous structures are anatomical features that evolved from different ancestors but have similar functions due to living in similar environments.

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What is the founder effect?

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The founder effect is a phenomenon that occurs when a small group of individuals starts a new population, leading to reduced genetic diversity.

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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 is a homologous structure?

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Homologous structures are anatomical features in different species that share a common ancestry, even if they have different functions.

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What is the difference between homologous and analogous structures?

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Homologous structures share a common ancestry but may have different functions, while analogous structures have similar functions but evolved independently.

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What is mutation in the context of evolution?

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A mutation is a change in the DNA sequence that can lead to new traits in an organism, which may be beneficial, neutral, or harmful.

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What is speciation?

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Speciation is the process by which new species arise from existing species, often due to genetic divergence.