1. Categorize organisms below: DogCatCat fish LionWolfApple tree DandelionsLizard SharkMouseDeer

2. Taxonomy

3. Taxonomy Classification and naming of living things

4. 1700’s: Carolus Linnaeus Grouped organisms in hierarchical categories based on structural similarities. Devised a 2-part system to give organisms a scientific name.

5. Binomial Nomenclature 2 – part naming system. 1 st part: Genus (generic) 2 nd part: species (specific) Written in italics and genus is capitalized. Example: humans- Homo sapien

6. Modern Linnaean System Domain Kingdom Phylum Class Order Family Genus Species “King Phillip Came Over For Good Soup”

7. HumansEukaryaAnimaliaChordataMammaliaPrimataHomindaeHomoSapien Homo sapien

8. DandelionsEukaryaPlantaeMagnoliophytaMagnoliopsidaAsteralesAsteraceaeTaraxacumOfficinale Taraxacum officinale

9. 3 Domains 1.Archaea 2.Bacteria 3.Eukarya

10. 6 Kingdoms 1.Archeabacteria 2.Eubacteria 3.Protista 4.Fungi 5.Plantae 6.Animalia

11. Archeabacteria Prokaryotic cells Heterotrophic and autotrophic by chemosynthesis

12. Eubacteria ProkaryoticUnicellular Heterotrophic and autotrophic by photosynthesis and chemosynthesis

13. Protista Eukaryotic Mostly unicellular, few multicellular Not fungus, plant, or animal Examples: ameoba, paramecium

15. Fungi Eukaryotic Unicellular or Multicellular Heterotrophs that absorb rather than ingest Examples: mushrooms, mildews, mold Examples: mushrooms, mildews, mold

16. Plantae EukaryoticMulticellularPhotosynthetic Develop from embryos Example: mosses, ferns, flowering plants

17. Animalia EukaryoticMulticellularHeterotrophs Develop from embryos Examples: birds, mammals, reptiles

18. Dichotomous Key Used to classify and identify organisms based on observable characteristics, such as structure and behavior. Lists specific characteristics in opposing pairs.

19. Phylogenic Tree represents the hypotheses of the evolutionary relationships between groups of organisms.

20. Cladogram a phylogenic tree that compares shared and derived characteristics. a phylogenic tree that compares shared and derived characteristics. Shared characteristic: feature that all members of a group have. Shared characteristic: feature that all members of a group have. Derived characteristic: feature that evolved only with the specific group. Derived characteristic: feature that evolved only with the specific group.

21. A. What characteristics does a cladogram compare? Homologous structures Embryological features Molecular similarities

22. B. What do cladograms assume? That organisms that share derived characteristics, inherited them from a common ancestor.

23. C. What do cladograms show? Which organisms shared a more recent common ancestor, NOT “who evolved from whom”

24. D. Do cladograms show definitive, proven evolutionary relationships? No, it shows a hypothesis and can be modified as discoveries are made.

25. How to read a cladogram: Outgroup: first group; does not share any features with the rest of the groups. Nodes: represent a common ancestor. Branches: trace new derived characteristics.