Evolution

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What are Vestigial Structures?

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Structures that are no longer needed for an organism's survival, such as wisdom teeth in humans or hip bones in whales.

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What is Natural Selection?

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The process where an organism that is better suited for the environment survives and reproduces.

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What is Evolution?

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Change over time in the characteristics of a species.

Front

What adaptation would be beneficial in a hot desert environment?

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Thin fur, as it helps to regulate body temperature.

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What is an adaptation?

Back

A phenotype that improves an organism’s chance of survival in their environment.

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What are Analogous Structures?

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Structures in different species that serve similar functions but have different evolutionary origins.

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What are Homologous Structures?

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Structures in different species that share a common ancestry but may serve different functions.

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What is Speciation?

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The process by which new species arise from existing species.

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What is a phenotype?

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The observable physical or biochemical characteristics of an organism, determined by its genotype.

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What is a genotype?

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The genetic constitution of an individual organism.