If the population of cyanobacteria suddenly went extinct today, predict how that might change the values of each of the gases represented on the graph. explain your answer. gases are oxygen and carbon dioxide

Don't see any graph but can surmise:
1. The line which rose dramatically prior to the Cambrian explosion-the time of the oxygen poisoning, must be oxygen. The line which concurrently fell must represent CO2.
2. Living cells increased oxygen and decreased CO2.
3, oxygen diminished to an extent, CO2 increased, as cyanobacteria take in co2 and give off oxygen