Chapter 1 bio

Chapter 1 bio - Chapter 1: Introduction to Life on Earth...

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Chapter 1: Introduction to Life on Earth Pages 1 to 18 What is the Science of Biology? Principles Underlying All Science 1. All events can be attributed to natural causes 2. Natural laws apply at all places and all times 3. People perceive events in similar ways Misconceptions About Science 1. Scientists “prove” things 2. “It is just a theory” 3. Science vs. religion The Scientific Method 1. Observation – something unexpected happens 2. Hypothesis – explanation ( if/then prediction) 3. Experiment – controlled experiment: challenge prediction 4. Conclusion – supports hypothesis or doesn’t 5. In some cases . . . . modify your hypothesis, and experiment again Scientific Experiment: Figure E1-1 Page 10 Figure 1.9 Page 11 Scientific Theories: A general statement about how things operate Derived through inductive reasoning – generalization based on many observations that support theory Has survived thorough challenges Never permanent or final “truth” Always provisional (tentative)
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Chapter 1 bio - Chapter 1: Introduction to Life on Earth...

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