110k views
5 votes
About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because _____. oxygen became available from cyanobacteria banded iron formations developed meteorite impacts increased the atmosphere got thicker from volcanic outgassing

User Hagne
by
7.9k points

1 Answer

5 votes
Oxygen became available from cyanobacteria
User GreyRoofPigeon
by
7.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories