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“But wait!” you might be saying to yourself. “How can an organism be photosynthetic and so afraid of oxygen? Doesn’t photosynthesis create oxygen?” And yes, you would be correct—most of the time...

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Journey to the Microcosmos is a Complexly production.
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SOURCES:
https://ucmp.berkeley.edu/glossary/gl...
https://academic.oup.com/femsle/artic...
https://www.pnas.org/content/109/22/8570
https://www.livescience.com/51720-pho...
https://www.researchgate.net/publicat...
https://link.springer.com/chapter/10....
https://www.nature.com/articles/natur...
https://www.nasa.gov/home/hqnews/2005...