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Geologic Time
| Question | Answer |
|---|---|
| Mass Extinction at the end of the Permian period | Paleozoic |
| Vertebrates evolve | Paleozoic |
| Age of Mammals | Cenozoic |
| Age of Reptiles | Mesozoic |
| First grasses apear | Cenozoic |
| First reptiles appear | Paleozoic |
| Pangea forms | Paleozoic |
| Mass extinction at the end of the Cretaceous Period | Mesozoic |
| First snakes appear | Mesozoic |
| First birds appear | Mesozoic |
| what was the cambrian explosion? | A time of a lot of new organisms |
| An animal that feeds its young with milk | mammal |
| amphibian | animal that evolved from lung fish |
| animal with strong legs and eggs with thick shells | reptile |
| vertebrate | animal with a backbone |