1. Classification 1.2

2. How do you say “dog” in Chinese? - gǒu gǒu How about in spanish? -perro What about French? -mohoko Does anyone see where this could be a problem in science???

3. I. What is classification? A. Classification- Organizing similar organisms into groups 1. Classifying Classmates Demonstration (by hair color)

4. II. History of Classification A. Aristotle 1. 2000 years ago 2. Greek 3. Made 2 Groups: Plant or Animal

5. II. History of Classification B. Linnaeus 1. Late 18 th century 2. Swedish 3. Grouped organisms with similar structure a. Ex: Plants with similar flowers are grouped together

6. II. History of Classification C. Modern Day Methods 1.Groups based on: a. Similarities b. Hereditary information (DNA) c. Phylogeny – evolutionary history of an organism and how it has changed over time. 1) Known from fossils

7. III. Classification Groups K iss P eople C arefully O r F ace G etting S lapped K ingdom P hylum C lass O rder F amily G enus S pecies

8. III. Classification Groups A. Kingdoms are broke into 5 large groups:

9. B. See example poster C. Monera (Prokaryotes) 1. Single Cell 2. No nucleus D. Protist (Eukaryote) 1. Single cell 2. Has nucleus III. Classification Groups

10. IV. Naming Organisms A. Binomial nomenclature – two word naming system created by Linnaeus to name the various species. 1. Genus - first word that is a group of species 2. Species – second word describes the organism

11. 3. Examples Acer rubrum – maple tree Acer saccharum sugar maple IV. Naming Organisms

12. B. Reasons for using Scientific names 1. Avoid mistakes 2. Group organisms with similar evolutionary history 3. They are descriptive IV. Naming Organisms

13. 4. Allows scientists to organize information about species quickly and efficiently IV. Naming Organisms

14. C. Tools for identifying organisms 1. Dichotomous keys a. See “Classifying Crazy People” Worksheet IV. Naming Organisms

15. 1. Dichotomous keys a. Detailed list of identifying characteristics b. Characteristics are arranged in steps with 2 choices at each step IV. Naming Organisms

17. Let’s try identifying one of the bugs in the classroom!

18. What is classsification? What did Aristotle do? What is the order of classification (hint: think kissing)? What is bionmial nomenclature? Penkeamos kylie…Name the genus & species V. Recap

19. Why would I want to use a dichotomus key? V. Recap