1. Classification of Living Things

2. Why Classify? Scientific Names are dependable and universally accepted! Felis concolor – mountain lion, puma, panther, cougar panther, cougar

3. Carolus Linnaeus – 1707-1778 Our system is based on his work. Heirarchical system – 7 levels. 7 levels.

4. Seven Levels of Classification

5. Naming Organisms Genus species Called Binomial Nomenclature! Examples: Homo sapiens – Human Human Bubo Virginianus – Great Horned Owl Great Horned Owl

6. Changes Over Time [edit]edit Linnaeus (1735) – 2 kingdoms – Animal and Vegetable Haeckel (1866) – 3 kingdoms – Protists, Plants, and Animals Chatton (1937) – 2 empires – Prokaryotes and Eukaryotes Copeland (1956) – 4 kingdoms – Monerans, Protists, Plants and Animals Whittaker (1969) – 5 kingdoms – Monerans, Protists, Fungi, Plants and Animals Woese, et. al. (1977) – 6 kingdoms – Eubacteria, Archaebacteria, Protists, Fungi, Plants and Animals Woese, et. al. (1990) – 3 domains – Bacteria, Archaea, Eukarya

7. Complete classsification

8. What characteristics are used? Similar structures Evolutionary relationships “Derived characters” – new characteristics that are evolutionary innovations Derived characteristics are used in cladograms.

9. Cladogram

10. Comparative Anatomy Turtle Human Horse Bird Bat Seal

11. Human Coccyx and Monkey Tail

12. Molecular Biology

14. Comparative Embryology CHICKHUMAN