HS-LS4-2/4: Natural Selection

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Natural Selection

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The process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

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Fitness (Aptitud)

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An organism's ability to survive and reproduce in its environment.

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Variation (Variación)

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Differences in physical traits of an individual from the group to which it belongs.

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Survival of the Fittest

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A phrase that means that the individuals best adapted to their environment are more likely to survive and reproduce.

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Adaptation

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A trait that helps an organism survive and reproduce in its environment.

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Favorable Genetic Variations

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Traits that increase an organism's chances of survival and reproduction.

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Population Change

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The change in the number of individuals in a population over time, often due to natural selection.

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Predation

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The preying of one animal on others, which can influence natural selection.

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Overproduction

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The phenomenon where organisms produce more offspring than can survive, leading to competition.

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Competition

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The struggle between organisms for the same resources in an environment.