Biology Week 2 Evolution Flashcard

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What is Natural Selection?

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Natural Selection is the process by which individuals that are better suited to their environment survive and reproduce, passing down their genes to their offspring.

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What is a fossil?

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A fossil is a trace of an organism that existed in the past.

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What does it mean if two organisms have very similar DNA sequences?

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It means that the two organisms are closely related.

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What did Charles Darwin observe about finch populations in the Galapagos Islands?

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Darwin observed different species of finches on different islands.

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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.

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Define 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 Variation in biology?

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Variation refers to the differences in traits among individuals 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.

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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 the significance of the Galapagos Islands in the study of evolution?

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The Galapagos Islands are significant because they provided Charles Darwin with evidence of evolution through the diversity of species.