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Biology Unit 5 (Round 7)
Common Ancestry & Speciation

How did polar bears evolve and what will happen to them as their environment changes?

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Unit Resources and Lessons Documents

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Unit Resources

 Unit Overview Materials  (Unit Overview, NGSS Elements, Teacher Edition, Student Edition)

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What are hybrids?

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How did polar and grizzly bears become different species?

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Unit Resources

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Why can polar bears and grizzly bears hybridize?

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What will happen to polar bears in the future?

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What is happening in the Arctic and with polar bears?

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How are polar and grizzly bears related to each other and other bears?

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Can we use everything we have figured out about speciation to explain a new phenomenon?

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