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| cells, growth & metabolism, development, reproduction, heredity, regulation & homeostasis, response to environmental stimuli |
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| what gas was missing from early atmospheric conditions |
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| gases in early atmosphere |
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| Describe the Miller-Urey Experiment |
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| 1950s, simulated water vapor in early atmosphere, used electricity as lightening, after one week found small organic molecules |
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| undersea gases from volcanoes combine making simple molec., rise to surface & pop out into atmosphere thru bubbles, fall back to ocean and continue process |
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| RNA first hereditary molec., DNA needs RNA to act, RNA can catalyze replication, close to RNA creation in lab with sugars and nucleic acids |
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| bubbles with membranes, v simple metabolism |
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| combo membrane with proteins and lipid bilayer, spontaneously split in two- simplest reproduction |
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| asteroid hit earth, brought life with it |
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| prokaryote layers built up over time- can use fossil dating |
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| bacteria, archaea, Eukarya |
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