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Georgia Perimeter College: The Permian Period

For Students 9th - 10th
This resource provides basic information of the changes that took place during the Permian period as well as the animals that populated the Earth during this time.
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Unit Plan
CK-12 Foundation

Ck 12: Biology: Mammal Ancestors

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Discusses therapsid ancestors of mammals.