View Pit Stop page for race #2257 by tim_han1234 — Ghost race
View profile for Tim (tim_han1234)
| Official speed | 96.24 wpm (84.29 seconds elapsed during race) |
|---|---|
| Race Start | November 7, 2020 4:26:02am UTC |
| Race Finish | November 7, 2020 4:27:26am UTC |
| Outcome | No win (2 of 3) |
| Accuracy | 98.0% |
| Points | 160.40 |
| 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. |