prokaryotes
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It is thought that prokaryotes were the first cells to appear on Earth.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For hundreds of millions of years, prokaryotes were the only living organisms on the planet.
From Science Daily ● Dec. 6, 2025
Bacteria are the best-understood prokaryotes, and because of their simple genetic structure, provided the team with the ideal host to analyze the mechanisms and machinery involved in the ribosome-RNAP coupling during gene expression.
From Science Daily ● Nov. 28, 2024
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
In fact, prokaryotes have just about every possible type of metabolism.
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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
