1. A. The sequence of the appearance of different groups B. The common ancestry of various groups C. The geographical regions where groups lived D. The future appearance of the groups 1. One of the ways that scientists can trace the ancestry of animals is through the fossil record. What can scientists NOT tell from their studies of the fossil record? HAPPY TUESDAY Turn in your “Classification Trees” to the front table. Make sure all names are on the back. Circle the name of the person who took it home. Bellwork: Copy the question and your answer for the following question. order

2. Essential Question: Why is taxonomy both important and helpful to the scientific community? Standard: 8A – Define taxonomy and recognize importance of taxonomic system.

3. Classification is the grouping of objects or information based on similarities.

4. Taxonomy is the science of grouping and naming organisms. …… in other words, taxonomy is the process of classifying and naming biological (living) organisms. In Biology:

5. EVOLUTIONARY CLASSIFICATION Biologists group organisms into categories that represent lines of evolutionary descent not just physical similarities. Phylogeny: The study of evolutionary relationships among organisms.

6. Let’s look at some animals

7. Devil Cat

8. Ghost Cat

9. Mountain Lion

10. Screaming Cat

11. Puma

12. Florida Panther

13. Cougar

14. There are at least 50 common names for the animal shown on the previous 7 slides. Common names vary according to region. How could we fix this problem?

15. 15 Confusion in Using Different Languages for Names copyright cmassengale

16. 16 Latin Names are Understood by all Taxonomists copyright cmassengale

17. 17 Carolus Linnaeus 1707 – 1778 18th century taxonomist. Called the “Father of Taxonomy”. Classified organisms by their structure. Developed naming system known as binomial nomenclature. Two-word name (Genus and Species) copyright cmassengale

18. Domain Kingdom Phylum Class Order Family Genus Species BROADEST TAXON Most Specific The major classification levels, from broadest to most specific A group at any level is a taxon.

19. 19 Does Does Katy Katy Perry Perry Come Come Over Over For For Good Good Soup! Soup!

22. The genus name is written first (always capitalized). The species name is written second (never capitalized). Both words are italicized if typed or underlined if hand written. Example: Felis concolor or F. concolor Which is the genus? The species? Binomial Nomenclature Turdus migratorius

23. 23 Binomial Nomenclature Which TWO are more closely related? copyright cmassengale

24. The six kingdoms in the classification system are: 1. Eubacteria 2. Archaebacteria 3. Protista 4. Fungi 5. Plantae 6. Animalia

25. Periods 4 & 5 HW: Dichotomous Key Search for the YouTube video “ Dichotomous Key” Dichotomous Key by Mark Drollinger Periods 4 & 5: Complete on Page 51 of your I.A.N. using Cornell Notes. Due TOMORROW. http://www.youtube.com/watch?v=M51AKJqx-7s