Evolution and Natural Selection

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What is Evolution?

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Evolution is the process through which species change over time through variations and natural selection.

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What is Natural Selection?

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Natural Selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

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What is Directional Selection?

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Directional Selection is a type of natural selection that favors one extreme phenotype over the mean or other extreme.

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What is Stabilizing Selection?

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Stabilizing Selection is a type of natural selection that favors intermediate variants and acts against extreme phenotypes.

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What is Disruptive Selection?

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Disruptive Selection is a type of natural selection that favors extreme phenotypes over intermediate phenotypes.

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Who proposed the theory of evolution by natural selection?

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Charles Darwin proposed the theory of evolution by natural selection.

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What are Homologous Structures?

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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 are Analogous Structures?

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Analogous Structures are features in different species that serve similar functions but do not share a common ancestry.

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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 the significance of Genetic Variation in Evolution?

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Genetic Variation is crucial for evolution as it provides the raw material for natural selection to act upon.