1. Plant Diversity Chapter 20

2. Why are plants important? MM edicine FF ood CC onvert abiotic to biotic CC reate habitats MM odify the climate SS tabilize the soil

3. Cladogram for plants

4. What adaptations allowed plants to come on to land? PP ollen grain CC uticle SS tomata mm ycorrhizae VV ascular tissue Xylem phloem

5. Diversity of Plants

6. Bryophytes Moss, liverworts, hornworts First land plants No true roots, stems, or leaves Contain no vascular tissue Rhizoids instead of roots Gametophyte is the dominant generation Require water for reproduction

7. Ferns Spore Bearing Plants Contains vascular tissue Evolved 350 million years ago Live in moist, acidic environments Created coal deposits Sporophyte dominant generation

8. Anatomy of a Fern Fiddlehead a baby frond

9. Gymnosperms conifers, cycads, ginkgos MMost ancient of the seed plants SSeeds lack protective outer coating

10. Conifers- evergreens Live in sandy soil, in a cool moist environment Roots spread out over a large shallow area Needlelike leaves covered with a thick waxy cuticle

11. Angiosperms The Flowering Plants 90% of all land plants Seeds are enclosed inside a protective fruit

12. Broken into two categories