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Late Precambrian Period

During the late Precambrian, continents drifted, carbon dioxide levels fluctuated, and climates changed.

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Unit 9.2: The Evolution of Multicellular Life
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To give an outline of the late Precambrian period, overview in the evolution during the Paleozoic Era and Cenozoic Era, and why the Mesozoic Eras is called the age of the dinosaurs. This is a direct instruction lesson, with a timeline activity and critical questions.
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