BioBookNotesCh1

BioBookNotesCh1 - CHAPTER 1: HOW DO BIOLOGISTS STUDY LIFE?...

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CHAPTER 1: HOW DO BIOLOGISTS STUDY LIFE? Ulcers are caused by bacteria, not overabundance of acid 1984 – Barry Marshall 1.1 HOW DO BIOLOGISTS AND OTHER SCIENTISTS ASK QUESTIONS? The beginning of all inquiry is curiosity DO SCIENTISTS USE THE SCIENTIFIC METHOD? Scientific method – a set of formal rules for expressing, testing, and eliminating ideas, or hypotheses How Do Scientists Begin? What Does a Hypothesis Do? Hypothesis – possible explanation for the way a process works that allows predictions What Is a Testable Hypothesis? Testable – valuable hypothesis must be ~ – experiment can be devised to dis/prove it What Makes a Good Experiment? Experiment – way to test a hypothesis or of searching for some unknown effect Carried out under controlled conditions Control – version of the experiment where everything is same except for what is tested WHAT IS A THEORY? Theory –
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This note was uploaded on 04/07/2008 for the course BIOL BC1001 taught by Professor Shepard during the Fall '06 term at Columbia.

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BioBookNotesCh1 - CHAPTER 1: HOW DO BIOLOGISTS STUDY LIFE?...

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