2. Classification How are living things classified?

3. How would you define classification? Grouping things according to common characteristics Sometimes things can be in more than one group

4. How would you classify these organisms? Frog Gorilla Snake Bluebird Giraffe Lion Zebra Horse Dog Fish Cat Iguana Mosquito

5. Land Water Gorilla Lion Horse Dog Cat Zebra Snake Iguana Fish Frog Air Mosquito Bluebird

6. Why do things need to be classified? -To find them -create organization -They are easier to study How would you classify automobiles? Automobiles Trucks, cars, vans 2 door, 4 door, 5 door Price Standard shift, stick shift

7. Why do scientists classify organisms? It is easier to study living things if they are grouped according to similarities Terms to know: Taxonomy- hierarchy of levels of classification Taxa- categories of classification Binomial nomenclature- 2 part naming system of classification

8. Summary Explain how & why organisms are classified. Organisms are classified into groups called taxa according to what they have in common. This makes them easier to study.

9. Aim : What is taxonomy? DO NOW: What is a HOMO-SAPIEN? (TAKE A GUESS)

10. Review of key terms: Taxonomy? Taxa? Binomial Nomenclature? Who was the 1 st to classify organisms? Aristotle- 4 th century B.C. Created three groups for animals & two groups for plants

11. How were animals classified? Three main groups according to movement --- 1. Fly 2. Swim 3.Walk or crawl Two groups for plants based on structure & size

12. How did classification expand? 1750’s Carolus Linnaeus put organisms into groups based on observable features -Created binomial nomenclature How does binomial nomenclature work? Consists of a 2 part naming system genus- group in which organism belongs species- specific name for organism

13. ONLY ORGANISMS OF THE SAME SPECIES CAN MATE TO PRODUCE FERTILE OFFSPRING Why do scientist use Latin to name organisms? Latin is a universal language to all scientists & therefore names will not be confused (no translating!!)

14. How does binomial nomenclature work? Example ----Cats GENUS – Felis Wildcat-(genus-species) Felis sylvestris Housecat- Felis domesticus Cougar- Felis concolor Example – Oak tree GENUS- Quercus Red oak – Quercus rubra White oak- Quercus alba

15. Summary Why is classification & binomial nomenclature important? Through classification & binomial nomenclature, scientists are able to organize & study millions of organisms