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OpenStudy (anonymous):
what are fossilized remains of single celled organisms similar to modern bacteria, exist in rocks that are more than 3.5 billion years old?
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OpenStudy (anonymous):
Wait. What's the question here?
OpenStudy (anonymous):
its fill in the blank for biology but i changed it up. whats exists in the rocks?
OpenStudy (anonymous):
Umm, minerals?
OpenStudy (anonymous):
Just a guess.
OpenStudy (anonymous):
thanks for trying
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