Lecture 1/7/2008 - Bio 171 Lecture Notes Science o A...

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Bio 171 Lecture Notes – 1/7/2008 Science o A particular way of understanding the natural world o Seeks to understand how nature works All scientists      ask questions about the natural world Propose explanations in terms of natural processes Evaluate these explanations using evidence collected from the natural  world Cannot answer questions from things  not  in the natural world o Biology : the scientific study of life Pasteur's Experiment o Tested the hypothesis of spontaneous generation Spontaneous generation: living things originate from non-living things Hypothesis: proposed explanations Must be falsifiable Must make specific predictions that can be critically tested by  experiments or observational studies If not, it is not a scientific hypothesis In the mid 1860s, people believed that simple organisms could come into  existence by spontaneous generation o Pasteur published his findings that supported the cells from cells hypothesis Rejected the hypothesis of spontaneous generation
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