How did cyanobacteria originated in the harsh weather conditions of Archean earth?
Answers
Answer:
Cyanobacteria are photosynthetic. They convert sunlight into energy and produce oxygen as a waste product. Back then, the Earth's atmosphere didn't have free oxygen in it as it does today. It was locked up in water molecules, or bonded to iron in minerals
Explanation:
The atmosphere of the Archean eon—one-third of Earth's history—is important for ... Here, considering the Archean in the older sense, the origin of life falls outside this Review, while the ... Atmospheric composition, in turn, affected Archean climate. ... Fossil evidence for Archean cyanobacteria is reported.
Cyanobacteria were a major presence in Proterozoic ecosystems; the ... than younger successions, the trail of microfossils grows cold at about 2000 Ma. ... Life on Earth originated at least 3500 Ma and possibly much earlier. ... Earth: A climate disaster triggered by the evolution of oxygenic photosynthesis
hope it helps!