The first O₂ producing organisms were probably ____. A)Archaea B)cyanobacteria C)green alga D)red alga E)plants

Question

Quizplus · Accepted Answer

The O₂ producing organisms were most likely cyanobacteria, as they were the first bacteria to evolve the ability to carry out photosynthesis and produce oxygen during the process. Archaea, green algae, red algae, and plants were not the first organisms to evolve photosynthesis.

The First O2 Producing Organisms Were Probably ____

The First O₂ Producing Organisms Were Probably ____