Evolution (Evidence and Mechanisms)

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What is the oldest layer in geological terms?

Back

Layer E is the oldest layer.

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What is a homologous structure?

Back

A homologous structure is an anatomical feature that is similar in different species due to shared ancestry.

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What is gene flow?

Back

Gene flow is the transfer of genetic material between populations, often through migration and interbreeding.

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What does evolution refer to?

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Evolution refers to the changes of species over time through processes like natural selection and genetic drift.

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What are DNA and RNA classified as?

Back

DNA and RNA are known as types of genetic material.

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What is natural selection?

Back

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

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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 evolution.

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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 a transitional fossil?

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A transitional fossil is a fossil that shows the intermediate states between an ancestral form and that of its descendants.

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What is mimicry in evolutionary terms?

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Mimicry is an evolutionary phenomenon where one species evolves to resemble another species for protection or other advantages.