stussyamanda stussyamanda

02-11-2017
Biology

contestada

which were the earliest oxygen-producing life-forms?
a.cyanobacteria.
b.seaweed.
c.dinosaurs.
d.ferns.

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themask101 themask101

02-11-2017

A is the correct answer

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Аноним Аноним

23-01-2019

A. CYANOBACTERIA is the CORRECT answer!

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