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| measurement of radioactive isotopes of determine age |
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| sequence and ages of rocks and fossils |
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| oldest fossil, 3.5 billion years old |
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| recreation of early Earth to show abiotic synthesis is possible |
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| production of polymers without dehydration synthesis |
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| abiotically created molecules within a membrane |
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| the first genes that replicated without protiens assisting them |
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| RNA that carries out enzyme like functions |
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| last universal common ancestor |
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| last living thing the every creature evolved from |
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| the continents move, allowing the sharing of organisms |
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| all the seperate landmasses were combines |
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| when a majority of species were wiped out in a short amount of time |
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| major changes in the history of life |
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| conditions on early Earth |
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| heat, wator vapor, compounds from volcanic eruptions, ultraviolet radiation |
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| hypothetical perios in the evolution of life when RNA was both genes and catalytic molecules |
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