Science
This Discovery Just Changed What We Know About The Earliest Life Forms on Earth – ScienceAlert
At the core of just about every plant, algae, and blob of green pond scum on Earth sits a molecular engine for harvesting sunlight. Its only emissions are oxygen…

At the core of just about every plant, algae, and blob of green pond scum on Earth sits a molecular engine for harvesting sunlight. Its only emissions are oxygen a gas we can all be incredibly thankful for today.
If not for the evolution of this vastly common form of photosynthesis (also known as oxygenic), complex life as we know it almost certainly would never have emerged, at least not in the shape it did.
But knowing exactly whom to thank for such a precious gift is far from straightforward….
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