Chapter 15 Objectives

Chapter 15 Objectives - CHAPTER 15 Tracing Evolutionary...

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C HAPTER 15: Tracing Evolutionary History Chapter Objectives Opening Essay Compare the structure of the wings of pterosaurs, birds, and bats. Explain how the wings are based upon a remodeling from a shared ancestral pattern. Early Earth and the Origin of Life (Ch. 26.1) 15.1 Describe the conditions on the surface of the early Earth. Describe the evidence that life on Earth existed at least 3.5 billion years ago. 15.1 Describe the four stages that might have produced the first cells on Earth. 15.2 Describe the experiments of Stanley Miller and others in understanding how life might have first evolved on Earth. 15.3 Describe the significance of protocells and ribozymes in the origin of the first cells. Major Events in the History of Life (Ch. 26.2) 15.4 Describe the key events in the history of life on Earth. 15.5 Explain how radiometric dating and the relative position of a fossil within rock strata are used to determine the age of rocks. 15.6
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Chapter 15 Objectives - CHAPTER 15 Tracing Evolutionary...

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