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Wow, you guys predicted they would ask about Beadle and Tatum and it was the 8 marker!! lucky I studied it after coming on here haha

Yeah, they were the first known forms of life (from stromatolite fossils), but the evidence in greenland is from different carbon ratios so they know that there were living organisms but didn't know exactly what they were. That's what my teacher told us anyway so I'm pissed if she was wrong lol

Nah, that was the question. It was asking the type of life. I put bacteria-like cells without a nuclei, the others answers like algae, prokaryotic cyanobacteria and something else

What answer did you put for the question about the evidence of life from 3.8 x 10^9 years ago?