Which of the following evolutionary events happened during the Precambrian Era?

Question

Quizplus · Accepted Answer

During the Precambrian Era, one of the most significant evolutionary events was the accumulation of oxygen in the atmosphere, primarily due to the photosynthetic activity of cyanobacteria in what is known as the Great Oxygenation Event. This change allowed for the evolution of aerobic life forms and set the stage for the complexity of life that would follow in later eras.

Which of the Following Evolutionary Events Happened During the Precambrian