How Did Life Begin?
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Last updated 10:56 PM on 1/30/26
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6 Terms
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13 - 17 bya
Big Bang formed the universe
2
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4.6 bya
Our solar system formed
3
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4.55 bya
Earth formed
4
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4 bya
Earth cooled enough for outer layers to solidify and oceans to form
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4 - 3.5 bya
Life emerged
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What does life require?
Interplay between DNA, RNA, and proteins, then living cells come from pre-existing ones
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