Diversity of Organisms and Classification

1. Diversity of Organisms and Classification

2. Classification of Organisms Kingdom Phylum / Division Class Order Family Genus Species

3. Why is the pyramid inverted?

4. Species • The smallest group of organisms classified which can interbreed with each other to produce fertile offspring • Scientific name : unique to all organisms • e.g. scientific name of: • human = Homo sapien • Sugar maple = _______________ (?) • Red maple = _______________ (?) • Striped maple = _______________ (?)

5. Six Kingdom System • Protists • Fungi • Animals • Plants • Archaebacteria • Eubacteria

6. All are made of cells • Membrane • Organelles “tiny organs” • DNA ( in or not in a nucleus)

7. A cell with a nucleus

8. A cell without a nucleus

9. All contain DNA

10. Multicellular tissue

11. Protists • Unicellular; microscopic • Nucleus present • Nucleus= “the Brain” of the cell; controls cell’s actions • Autotrophic (self-feeder, makes food by photosynthesis) or… • Heterotrophic (other-feeder)

12. Fungi • Have nuclei • Made up of hyphae • Stringy threads of cells • No root, stem and leaf • Saprophytic or parasitic • Saprophytic: feed on dead substances • Parasitic: obtain nutrients from living organisms

13. Animals • Have nuclei • Multi-cellular • Divided into two groups according to the presence or absence of backbone: • Invertebrates : without backbone • Vertebrates : with backbone • (Phylum Chordata)

15. Plants • Have nuclei • Multicellular • perform photosynthesis • Autotrophic – make own food • Can be divided into two groups: • Non-flowering plants • Flowering plants

16. Eubacteria • Unicellular, microscopic • No nucleus • Saprophytic or parasitic • Saprophytic: feed on dead substances • Parasitic: obtain nutrients from living organisms

17. Archaebacteria • “Ancient” bacteria • Unicellular, microscopic • No nucleus • Heterotrophic (other feeder, or … • Autotrophic (self-feeder)