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High School Biology: From the First Organism Onward - The Evolution of Multicellular Life
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High School Biology: From the First Organism Onward - The Evolution of Multicellular Life
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12 Questions

1. During the Mesozoic Era
2. During the Tertiary Period,
3. The Cambrian explosion refers to
4. During the late Precambrian,
5. During the Cenozoic Era,
6. The Jurassic Period
7. The Precambrian extinction refers to
8. Adaptations during the late Precambrian included
9. How much of Earth’s history passed before multicellular life evolved?
10. During the Quaternary Period,
11. The Mesozoic Era is known as the
12. The Permian extinction refers to