Evolution and natural selection Review

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What is natural selection?

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Natural selection is the process by which organisms that are best adapted to their environment survive and reproduce more successfully than those less adapted.

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What is an organism's phenotype?

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An organism's phenotype is its physical appearance or observable characteristics.

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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, which occurs most quickly in small populations.

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How do bacteria reproduce?

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Bacteria reproduce asexually, typically through a process called binary fission.

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What does 'survival of the fittest' refer to?

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'Survival of the fittest' refers to the concept that individuals with favorable adaptations are more likely to survive and reproduce.

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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 selective breeding?

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Selective breeding is the process by which humans breed plants and animals for particular genetic traits.

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What is the difference between genotype and phenotype?

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Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.

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What role does mutation play in evolution?

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Mutations are changes in DNA that can lead to new traits, providing raw material for natural selection.

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What is adaptation?

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Adaptation is a trait that increases an organism's fitness in its environment.