1. Life: 3 Domains, 5 or 6 Kingdoms Biology Honors

2. 3 Domains Broadest, most inclusive taxon Organized evolutionarily ▫Type of cell, # of cells, how they get energy

3. Domain Archaea & Domain Eubacteria Contain all unicellular prokaryotes ▫No nucleus or membrane-bound organelles ▫Division is based on cell wall components

4. Domain Eurkarya More complex Have a nucleus and membrane-bound organelles Evolved through endosymbiosis? ▫Evidence: mitochondria and chloroplasts have own DNA

5. Domain Eukarya is Divided into Kingdoms Kingdoms are more specific than domains 5 or 6 kingdoms of classification Depends on how you classify prokaryotes: ▫5 kingdoms: all bacteria are in Kingdom Monera ▫6 kingdoms: bacteria are split into Kingdom Archaebacteria and Kingdom Eubacteria

6. Kingdom Archaebacteria Prokaryotes Unicellular Heterotrophs May represent the first cells to have evolved

7. Kingdom Eubacteria Prokaryotes Unicellular Heterotrophs or autotrophs Present in almost all habitats on earth.

8. Kingdom Protista Eukaryotes Unicellular (few multi-cellular algae) Heterotrophs or autotrophs Example: ▫Euglena ▫Diatoms

9. Kingdom Fungi Eukaryotes Mostly multicellular (yeast are unicellular) Heterotrophs Examples: ▫Mushrooms ▫Molds ▫Yeasts ▫Mildew

10. Kingdom Plantae Eukaryotes Multicellular Autotrophic Examples: ▫Nonvascular ▫Vascular

11. Kingdom Animalia Eukaryotes Multicellular Heterotrophs Have mobility (except adult sponges) No cell wall Example: ▫Invertebrate ▫Vertebrate