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| 11251146302 | Ordovicion | Falling sealevels | 0 | |
| 11251146303 | Late Devonian | Oxygen shortage | 1 | |
| 11251146304 | Permian-Triassic | Volcanic eruption | 2 | |
| 11251146305 | Triassic-Jurassic | Asteroid and climate change | 3 | |
| 11251596817 | artificial selection | Breeding | 4 | |
| 11251596818 | natural selection | Mutation | 5 | |
| 11251682774 | Climate change was | Rough | 6 | |
| 11251682775 | artificial selection | Breeding | 7 |
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