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The original ancestor of all life on earth was a(n) ______. flagellate microbe arthropod cyanobacteria
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The original ancestor of all life on earth was a(n) ______. flagellate microbe arthropod cyanobacteria

User Brett Hannah
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Cyanobacteria were the first life forms on earth, according to fossils dating back 3.7 billion years.
User Covar
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