Biology, 30.09.2019 06:50 LindaCat78

Cyanobacteria is said to be the first organism on earth. what is the best explanation for its importance to scientists?

it is believed to have pumped enough oxygen in earth's atmosphere to create eukaryotic cells.

it is eukaryotic.

it is believed to have pumped enough carbon dioxide in earth's atmosphere to create eukaryotic cells.

it is prokaryotic.

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Cyanobacteria is said to be the first organism on earth. what is the best explanation for its import...