1. Chapter 18-1: Finding Order in Diversity Essential Questions: How are living things organized for study? What is binomial nomenclature? How does Linnaeus’s system of classification work?

2. Why classify? –To name organisms & group in logical order –Taxonomy: classification & naming of organisms Avoids confusion of common names Mountain Lion Cougar Puma Panther

3. Assigning scientific names –Early efforts at naming organisms Long, cumbersome names Ex: “Oak with deeply divided leaves with no hairs on their undersides and no teeth around their edges.”

4. –Binomial nomenclature - Linnaeus 2 part scientific name –1 st name capitalized, second lower case, all italicized –Ex: Ursus arctos

5. Linnaeus’s system of classification –Group or level of organism is a taxonomic category or taxon Kingdom Phylum Class Order Family Genus Species

6. Grizzly bearBlack bearGiant panda Red fox Abert squirrel Coral snake Sea star KINGDOM Animalia PHYLUM Chordata CLASS Mammalia ORDER Carnivora FAMILY Ursidae GENUS Ursus SPECIES Ursus arctos