The ancestors of modern _______________ performed the oxygenic photosynthesis responsible for converting our anoxic planet to an oxygenated one.

Question

Quizplus · Accepted Answer

Cyanobacteria are the only group of bacteria known to have performed oxygenic photosynthesis, which is responsible for creating Earth's oxygen-rich atmosphere. The other options are not known for this specific metabolic capability.

The Ancestors of Modern _______________ Performed the Oxygenic Photosynthesis Responsible