Evidence of Evolution

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What are variations in a species?

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Variations are slight differences within members of the same species, such as differences in color, size, or beak length.

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What are homologous structures?

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Homologous structures are anatomical features in different species that have similar origins but may serve different functions, indicating a common ancestry.

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What is extinction?

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Extinction is the complete disappearance of a species when all its members have died.

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What is embryology?

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Embryology is the study of embryos of various organisms, showing similarities in development that suggest a common ancestor.

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What are subspecies?

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Subspecies are populations of the same species that differ genetically due to adaptation to different environments.

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What is natural selection?

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Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What are vestigial structures?

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Vestigial structures are anatomical features that have lost most or all of their original function through evolution.

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What is adaptive radiation?

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Adaptive radiation is the process by which organisms diversify rapidly into a wide variety of forms to adapt to different environments.

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What is the significance of fossils in evolution?

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Fossils provide evidence of past life forms and show how species have changed over time, supporting the theory of evolution.

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What is speciation?

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Speciation is the evolutionary process by which populations evolve to become distinct species.