Question

Why was the evolution of cyanobacteria such a significant event in Earth's history

Answer 1

Cyanobacteria are blue-green algae that produce chlorophyll and undergo photosynthesis. Oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.

Step-by-step explanation:

Right on ED2021 practice, goodluck!

Answer 2

Step-by-step explanation:

oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.