Qwerty (qwerty91994)

Race #766

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Official speed 119.14 wpm (68.09 seconds elapsed during race)
Race Start August 29, 2020 8:45:10pm UTC
Race Finish August 29, 2020 8:46:18pm UTC
Outcome Win (1 of 5)
Opponents 2. glandock1 (89.82 wpm)
Accuracy 97.0%
Points 198.56
Text #3550368 (Length: 676 characters)

Mitochondria and chloroplasts display similarities with bacteria that led to the endosymbiont theory. This theory states that an early ancestor of eukaryotic cells engulfed an oxygen-using non-photosynthetic prokaryotic cell. Eventually, the engulfed cell formed a relationship with the host cell in which it was enclosed, becoming an endosymbiont, a cell living within another cell. Indeed, over the course of evolution, the host cell and its endosymbiont merged into a single organism, a eukaryotic cell with a mitochondrion. At least one of these cells may have then taken up a photosynthetic prokaryote, becoming the ancestor of eukaryotic cells that contain chloroplasts.