prokaryotes
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It is thought that prokaryotes were the first cells to appear on Earth.
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Eukaryotes are advanced cells that contain a nucleus, while the more ancient cellular lineages without a nucleus are known as prokaryotes.
From Science Daily ● Aug. 12, 2026
The researchers examined more than one hundred gene families across multiple biological systems and focused on the traits that separate eukaryotes from prokaryotes.
From Science Daily ● Dec. 6, 2025
Analyzing microbes in Tirez soil samples from 2002 and 2021 for a study in Scientific Reports, Fairén and his colleagues found that single-celled organisms called prokaryotes had adapted to thrive in extremely dry sediments.
From Scientific American ● May 27, 2023
As shown in Figure 3a, some individual prokaryotes were responsible for transferring the bacteria that caused mitochondrial development to the new eukaryotes, whereas other species transferred the bacteria that gave rise to chloroplasts.
From Textbooks ● Jan. 1, 2015
It has been suggested that flagellae and cilia were once spirochetes that joined up with the other prokaryotes when nucleated cells were being pieced together.
From "The Lives of a Cell" by Lewis Thomas
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