Select the 2 correct statements that describe cyanobacteria.(1 point)
Responses
Cyanobacteria decreased the levels of oxygen in the atmosphere
Cyanobacteria lived in the ocean
Cyanobacteria were the first photosynthesizing organisms
Cyanobacteria have complex cells containing a nucleus
Cyanobacteria lived in the ocean
Cyanobacteria were the first photosynthesizing organisms