What is the first prokaryote kingdom in existance
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What is the first prokaryote kingdom in existance

[From: ] [author: ] [Date: 11-05-17] [Hit: ]
I dont buy the traces of lipid found in ancient shale argument.Too much possibility of contamination over the past several billion years -- and such lipids may have been formed through nonbiological processes on the early Earth.......
Bad question. We don't know.
The oldest fossils we have are stromatolites, which look like modern cyanobacterial mats.
In the six-kingdom scheme, cyanobactera are classified under Eubacteria.

If your teacher tries to tell you that Archaebacteria came first, ask her for evidence. I don't buy the "traces of lipid found in ancient shale" argument. Too much possibility of contamination over the past several billion years -- and such lipids may have been formed through nonbiological processes on the early Earth.
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