1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

3. Ozone Layer

4. His Studies on the changing Earth and its age influenced Darwin.

5. Modern Theory of Evolution

6. Index Fossil

8. Cyanobacteria (Blue-green algae)

9. Thomas Malthus

10. Cenozoic Era

11. Selective Breeding

13. Paleozoic Era

14. Added oxygen gas to the atmosphere

15. Break in the rock record

16. Species that is abundant in the fossil record and lived during a specific time period.

17. Charles Lyell

18. Age of the Mammals

19. Jawless Fish

21. Blocks harmful UV radiation allowing life to evolve on land

22. Darwin’s Theory of Natural Selection + Modern Genetics

23. Unconformity

24. Dinosaur Mass Extinction

25. “Tree of Life”

26. Dominated by aquatic invertebrates; fish; amphibians & then reptiles

27. First Vertebrates

28. His human overpopulation studies influenced Darwin.

29. Homologous Structure

31. Vestigial Structure