Using microscope slides and dipping them into the boiling hot springs at Yellowstone National Park, scientists were able to collect these organisms. They are unicellular, prokaryotes with a cell wall. What are they?

Archaebacteria are unicellular prokaryotes, and many can live in extreme environments such as Yellowstone’s hot springs. Protists and fungi are eukaryotes, so they do not fit the description. The organisms are archaebacteria.

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