October 4 lecture - October 04 2010 Q1. Suppose you wanted...

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October 04 2010 Q1. Suppose you wanted to do an experiment on how additional nitrogen affects the growth of young cedar trees in clearcuts. How could you ensure that there was only one difference between the treatment groups? *Do the experiment in a clearcut, but use a large sample and randomly assign the treatments I. Non-experimental evidence in science What other sorts of evidence do scientists use? Q2. From a scientific standpoint, what is the problem with the statements highlighted in red? *Historical, indirect, or other types of “non-eyewitness” evidence is considered valid if it tests the hypothesis vigorously. Science starts with a question: Where do species come from, and how have they come to be so well adapted to their environments? Scientific theories usually have a pattern component and a process component. -The pattern component is a statement of fact-something that is observed in the world -The process component is a mechanism that explains the pattern II. The Theory of Special Creation (“scientific creationism”)
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This note was uploaded on 10/26/2010 for the course BIOL 180 taught by Professor Freeman during the Fall '07 term at University of Washington.

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October 4 lecture - October 04 2010 Q1. Suppose you wanted...

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