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Ancient Protist May Hold Clues to Evolution of Multicellular Lifeperkinsii, an ancestral species of protist. This unicellular organism ... standing scientific debate concerning 600 million-year-old fossils that resemble embryos, and could challenge certain ...
Just as the human body serves as a habitat for bacteria and other microbes, diverse, tiny organisms known as protists host their own microbiomes. "We know there are many symbionts in the world ...
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