What came first- Prokaryote or Eukaryote>
prokaryote- euk. evolved from prok.
Prokaryotes are believed to have existed before eukaryotes. The oldest fossil prokaryotes date back to about 3.5 billion years ago, while the oldest fossil eukaryotes date back to about 1.8 billion years ago. Prokaryotes are simple single-celled organisms that lack a nucleus and other membrane-bound organelles. Eukaryotes, on the other hand, are complex organisms with a membrane-bound nucleus and many other organelles, such as mitochondria, chloroplasts, and the endoplasmic reticulum. The evolution of eukaryotes is believed to have arisen from the endosymbiosis of prokaryotes, where one prokaryotic cell engulfed another and formed a symbiotic relationship, eventually leading to the development of the first eukaryotic cell.
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