lecture%203%20evidence%20of%20evolution%20A

lecture%203%20evidence%20of%20evolution%20A - 10/1/09 1...

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Unformatted text preview: 10/1/09 1 Lecture 3 Evidence of Evolution Reading Text Ch 22 Which of the following is evolution, in the scientific sense? a. A human develops cancer b. A severe winter storm kills many sparrows in San Diego. Immediately afterwards there is a change in the average size of the sparrow population, because more small birds died in the storm than large birds. c. A population of birds molts from summer to winter plumage d. All of the above e. None of the above Common usage Evolution = to change Scientific usage Evolution = genetic change over time Microevolution - change in the genetic composition of a population across generations Macroevolution change in the composition of species over time Which of the following is evolution, in the scientific sense? a. A human develops cancer b. A severe winter storm kills many sparrows in San Diego. Immediately afterwards there is a change in the average size of the sparrow population, because more small birds died in the storm than large birds. c. A population of birds molts from summer to winter plumage d. All of the above e. None of the above Dogs in trash bin Maybe one day Ill wake up and think, ahhh, I have evolved... Could this happen? Could this happen?...
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lecture%203%20evidence%20of%20evolution%20A - 10/1/09 1...

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