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zimovet [89]
2 years ago
14

Evidence of an oxygen-rich atmosphere is the presence of

Biology
2 answers:
balandron [24]2 years ago
8 0
I Believe it to be Stromatolites
Oksi-84 [34.3K]2 years ago
4 0
Stromatolites is the answer
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Euglenoids <span>are unicellular protists commonly found in fresh </span>water.They don not have a cell<span> wall, despite that, a protein rich </span>cell membrane called pellicle is present in Euglenoids.
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