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mario62 [17]
3 years ago
12

Large mats of green algae lived during the __________ period, more than 550 million years ago .

Biology
2 answers:
belka [17]3 years ago
5 0
Large mats of green algae lived during the Cambrian period. I hope this helps! 
emmainna [20.7K]3 years ago
3 0
Mesioc.............................
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