Evidence for Evolution09

Evidence for Evolution09 - BSCI 106 Dr. Sara Via Fall 2009...

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BSCI 106 Fall 2009 p1 Dr. Sara Via Lecture 14. Evidence for Evolution—Testing the Hypothesis Reading: pp. 484-493 (Freeman) A. The methods and expectations of science: Predict, test, reject, repeat 1. Hypotheses about how some aspect of the world works lead to certain predictions about what one is likely to observe. a. For evolution by natural selection, predictions are that we will see -change over time and -descent with modification, and -the kinds of changes will be consistent with natural selection as a mechanism b. Test through observation and experiments— c. IF hypothesis is not supported, reject it, modify it and try again 2. Science does not permit the acceptance on faith of any explanation involving hypotheses that are already refuted, untested or untestable B. If evolution by natural selection is true, then we should be able to 1. observe the things the theory predicts! a. Change over time b. Descent with modification from common ancestor 2. cause evolution experimentally by satisfying the conditions C. Change over time? 1.
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Evidence for Evolution09 - BSCI 106 Dr. Sara Via Fall 2009...

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