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The top documents tagged [oldest animal fossils]
Chapter 15 Early Earth and the Origin of Life. Life on Earth originated between 3.5 and 4.0 billion years ago. The Earth formed about 4.5 billion years
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The Fossil Record and Geologic Time Scale KEY CONCEPT Specific environmental conditions are necessary in order for fossils to form
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10.4 KEY CONCEPT Evidence of common ancestry among species comes from many sources
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Introduction to the Animal Kingdom. Introduction to the Animal Kingdom Animals are multicellular eukaryotic heterotroph whose cells lack cell walls, digestion
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Chapter 15
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Chapter 4: Early Earth and the Origin of Life. Some major episodes in the history of life
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Ch.26/27. I. History of life A. Earth formed about 4.5 billion years ago B. Life began a few 1,000,000 years later 1. Metabolic activity found in 3.5
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12.2 The Geologic Time Scale KEY CONCEPT The geologic time scale divides Earth’s history based on major past events
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