Topic 11: Evolution

Front

What is a eukaryotic organism?

Back

An organism whose cells contain a nucleus and other membrane-bound organelles.

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What are analogous structures?

Back

Body parts in different species that are completely different but have the same function, such as bat wings and fly wings.

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What is an autotroph?

Back

An organism that can make its own food from solar energy or chemicals.

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What is sexual reproduction?

Back

A form of reproduction that likely developed second and contributes to genetic diversity.

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What does aerobic mean?

Back

Referring to processes or organisms that require oxygen.

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What is a prokaryotic organism?

Back

An organism whose cells do not contain a nucleus or other membrane-bound organelles.

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What are homologous structures?

Back

Body parts in different species that are similar due to shared ancestry, such as the forelimbs of humans and whales.

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What is a heterotroph?

Back

An organism that cannot make its own food and must consume other organisms for energy.

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What is a vestigial structure?

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A body part that has lost its original function through evolution, such as the human appendix.

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What is natural selection?

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The process by which organisms better adapted to their environment tend to survive and produce more offspring.