What is Life?. What will happen if organisms reproduce, imperfectly, and the variation makes a difference in survival and reproduction of the organism?.
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School children modeled this by drawing copies of a drawing of animal. Then most of these copies were eliminated (disaster or climate change), and they drew copies of the surviving drawings, for 6 successive generations. These drawings were animated to produce this video: http://www.youtube.com/watch?v=N8X-j0dbZWsWhat will happen if organisms reproduce, imperfectly, and the variation makes a difference in survival and reproduction of the organism?
Red sandstone (horizontal)
Grey shale (vertical)
“… no vestige of a beginning, no prospect of an end.” –James Hutton
(photo: Anne Burgess)
Campbell & Reece, Fig. 22.14
Foraminiferans – www.don-lindsay-archive.org/creation/foram_work.gif
1859 Origin of Species – only figure
1837 notebook page
Mutation rate for black MCIR allele = 2 x 10-8