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What is a vestigial structure?

Back

A vestigial structure is a body part that has lost its original function through evolution. An example is the pelvis bone in whales.

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What is evolution?

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Evolution is the change over time in the heritable characteristics of biological populations.

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What is camouflage?

Back

Camouflage is an adaptation that allows an animal to blend into its environment to avoid detection by predators.

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What is heredity?

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Heredity is the passing of genetic traits (DNA) from parent to offspring.

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What is natural selection?

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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 homologous structure?

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

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What is an analogous structure?

Back

An analogous structure is a body part that performs a similar function in different species but does not share a common ancestry.

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What is selective breeding?

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Selective breeding is the process of breeding plants and animals for particular genetic traits.

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What is mimicry?

Back

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

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What is the significance of a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms based on a series of choices that lead to the correct name.