Cyanobacteria are single-celled organisms that led to the Great Oxygenation Event and paved the way for complex life. There was no free oxygen in the atmosphere 3.5 billion years ago and anaero...
Cyanobacteria are single-celled organisms that led to the Great Oxygenation Event and paved the way for complex life. There was no free oxygen in the atmosphere 3.5 billion years ago and anaero...
GEOL 109 | The Earth and Life Through Time • blame cogdog • SPLOTbox theme is based on Garfunkel by Anders Norén.