Ordovician and Silurian 8 Devonian 9 Carboniferous and Permian Events a

Ordovician and silurian 8 devonian 9 carboniferous

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7.Ordovicianand Silurian 8. Devonian 9. Carboniferous and Permian Events a.Reptiles evolved from amphibians,and winged insects evolved into manyforms.b.The first vertebrates evolved, and insectsfirst appeared.c.Many groups of fishes were present inthe oceans, and the first amphibiansevolved. 104 10. Animals first begin to invade the land during the ___________________ Period. 11. Where does the Carboniferous Period get its name? 12. When many types of living things become extinct at the same time, it is called a(an) ___________________________. 13. Is the following sentence true or false? The mass extinction at the end of the Paleozoic affected only land animals. ___________________ Mesozoic Era (pages 431–432) 14. Complete the following table. Period Evolutionary Event First mammals First b irds First flowering plants PERIODS OF THE MESOZOIC ERA 15. The Mesozoic Era is called the Age of . 16. The first dinosaurs appeared in the Period. 17. Is the following sentence true or false? The mammals of the Triassic Period were very small. 18. Is the following sentence true or false? Many paleontologists think that birds are close relatives of dinosaurs. 19. The dominant vertebrates throughout the Cretaceous Period were . 20. What advantage do flowering plants have over conifers? 21. Describe the mass extinction that occurred at the end of the Cretaceous Period.
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Name______________________________ Class__________________ Date ______________ 105 Cenozoic Era (pages 433–434) 22. Is the following sentence true or false? During the Cenozoic Era, mammals evolved adaptations that allowed them to live on land, in water, and in the air. ___________________ 23. The Cenozoic Era is called the Age of ___________________. 24. What were Earth’s climates like during the Tertiary Period? 25. How did Earth’s climate change during the Quaternary Period? 26. Is the following sentence true or false? The very earliest ancestors of our species appeared about 100,000 years ago. ___________________ Reading Skill Practice When you read a section with many details, writing an outline may help you organize and remember the material. Outline Section 17–3 by first writing the section headings as major topics in the order in which they appear in the book. Then, beneath each major topic, list important details about it. 106 Section 17–4 Patterns of Evolution (pages 435–440) Key Concept What are six important patterns of macroevolution? Introduction (page 435) 1. The large-scale evolutionary changes that take place over long periods of time ar e referred to as .
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