1. Exam #2 F 2/29 in class Review Th 2/28 5pm in PAI 3.02

2. CB 29.7 Plant Evolution: different plants have different ploidy for the different parts of their lifecycle.

3. Haploid dominant (algae) CB 29.8 and.12 Diploid dominant (fern)

5. CB 29.7

6. CB tbl 29.1 Extant Terrestrial Plants

7. Moss

8. CB 29.9 Extant early terrestrial plants

9. Early terrestrial plants: Could not transport water over long distances Could not grow tall, lacked support Needed water for reproduction

10. Moss Life Cycle CB 29.8

11. Moss Life Cycle: water required for reproduction CB 29.8

12. CB 29.11 Early vascular plants

13. CB 29.14 Extant early vascular plants

14. CB 35.18 Plant vascular system: Xylem- water… (tough tubes, support) Phloem- sugars…

15. Xylem- thick cells walls

17. Equisetum

18. Moss Equisetum

19. CB 29.13 Early Leaves: fusion of branched stems

20. CB 29.1 Ferns

21. Fern life cycle

22. CB 29.15 Carnboniferous forest of ferns, etc. ~330 mya (now coal)

23. Changes in atmospheric C0 2

24. CB 29.7

25. Seeds and pollen allowed gymnosperms to reproduce without water

26. Weird Gymnosperms CB 30.4

27. Conifers: More common Gymnosperms CB 30.4

28. Gymnosperms disperse their pollen and seeds by wind Note: this is not a gymnosperm

29. Gymnosperms disperse their pollen and seeds by wind

30. Flowering Plants = 250,000 species CB tbl 29.1 Extant Terrestrial Plants

32. Angiosperms- flowering plants

33. The flower allowed angiosperms to direct pollen movement from one plant to another

34. CB 30.7 a typical flower

35. CB 30.13 Animal pollinators move pollen from one plant to another

36. CB 30.13 Plants reproduce, reward animals with sugar http://plantsinmotion.bio.indiana.edu/plantmotion/flowers/flower.html

37. CB 30.9 Seed dispersal can be by wind or often also by animal

38. CB 30.8 Fruits: Animals can get nutrients to disperse seeds

39. CB 30.10 Angiosperm reproduction

40. Exam #2 F 2/29 in class Review Th 2/28 5pm in PAI 3.02