View Pit Stop page for race #731 by altaria13 — Ghost race
View profile for Jason (altaria13)
| Official speed | 67.88 wpm (119.50 seconds elapsed during race) |
|---|---|
| Race Start | September 28, 2019 1:50:56am UTC |
| Race Finish | September 28, 2019 1:52:55am UTC |
| Outcome | No win (4 of 5) |
| Accuracy | 95.0% |
| Points | 113.13 |
| 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. |