Evolution and Natural Selection

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What is evolution?

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The change of alleles in a population over time

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Preserved remains of an organism that lived in the past.

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fossil

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When an organism is no longer in existence...

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extinct

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The man who proposed the theory of natural selection and evolution.

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Charles Darwin

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A trait or characteristic that increases an organism’s ability to survive and reproduce.

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adaptation

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Fossils, similar body shape, similar DNA, and what is the fourth piece of evidence for evolution?

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Similarities in early development

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What is a human cause of extinction?

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Global warming

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What characteristic did Darwin observe about the finches on the Galapagos Islands? Options: Their feathers, Their feet, Their beaks, Their body sizes

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Their beaks

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The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________

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Adaptation

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Genetic differences between organisms of the same species

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Variation