EVOLUTION

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What is evolution?

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Evolution is the change in the heritable characteristics of biological populations over successive generations.

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What is adaptation?

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Adaptation is a trait or change in lifestyle that helps a plant or animal survive in its environment.

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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 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 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 speciation?

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Speciation is the process by which new species arise from existing species.

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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 a mutation?

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A mutation is a change in the DNA sequence of an organism's genome, which can lead to new traits.

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What is fitness in evolutionary terms?

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Fitness refers to an organism's ability to survive and reproduce in its environment.