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Chapter 17 The History of Life

Chapter 17 The History of Life

Chapter 17 The History of Life. Section 17-3 Evolution of Multicellular Life. The Fossil Record. Documents Evolutionary Histories Climate Geography Life Forms. Precambrian Time. Covers 90% of Earths History During This Period: Simple Anaerobic Life Formed Then Photosynthetic Organisms

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584 views • 25 slides
Warm Up 1/9/09

Warm Up 1/9/09

Warm Up 1/9/09. What important event in animal evolution marks the beginning of the Cambrian? a. the ability to fly b. the ability to swim c. the appearance of fossils d. the appearance of hard parts What event may have triggered the great Paleozoic extinction?

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331 views • 24 slides
Section 3: The Mesozoic and Cenozoic Eras

Section 3: The Mesozoic and Cenozoic Eras

Section 3: The Mesozoic and Cenozoic Eras. Preview Objectives The Mesozoic Era Mass Extinction The Cenozoic Era Maps in Action. Objectives. List the periods of the Mesozoic and Cenozoic Eras. Identify two major geologic and biological developments during the Mesozoic Era.

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1.64k views • 20 slides
Acknowledgement of Geographical Regional Division (e.g. Regionalization)

Acknowledgement of Geographical Regional Division (e.g. Regionalization)

Part 2 Process of China Geography. Evolvement of Geographical Environment ? e.g. Fluctuation of sea-land ?. Interaction of Geographical Elements (e.g. Land degradation). Acknowledgement of Geographical Regional Division (e.g. Regionalization). Yrs before. 0.17 million. 6 thousand.

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321 views • 18 slides

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