Unit 8 Vocab Quiz Bio

Change in a kind of organism over time.

• evolution

• theory

• survival of the fittest

• adaptation

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A well-tested explanation that unifies a broad range of observations.

• evolution

• theory

• survival of the fittest

• adaptation

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An inherited characteristic that increases an organism's chance to survive.

• evolution

• theory

• survival of the fittest

• adaptation

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The process by which individuals that are better suited to their environment survive and reproduce most successfully.

• evolution

• theory

• survival of the fittest

• adaptation

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Preserved remains or evidence of an ancient organism.

• fossils

• vestigial organ

• primordial soup

• niche

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The sun’s energy, lightning and heat triggered chemical reactions to produce small organic molecules from substances present in the atmosphere.

• fossils

• vestigial organ

• primordial soup

• niche

An organ that serves no useful function in an organism.

• fossils

• vestigial organ

• primordial soup

• niche

Full range of physical and biological conditions in which an organism lives and the way in which the organism uses these conditions.

• fossils

• vestigial organ

• primordial soup

• niche

Selection by humans for breeding of useful traits from the natural variation among different organisms.

• artificial selection

• natural selection

• directional selection

• stabilizing selection

A form of natural selection where individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the other end.

• artificial selection

• natural selection

• directional selection

• stabilizing selection

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