2. w This Powerpoint is a compilation of presentations found on the Internet. Unfortunately, the authors did not include their names on their work.

3. Classification of Living Things

4. What is classification? w Classification is the grouping of living organisms according to similar characteristics w The science of classifying organisms is known as taxonomy

5. Early classification systems w Aristotle grouped animals according to the way they moved

6. The modern system of classification has 7 levels: w Kingdom w Phylum w Class w Order w Family w Genus w Species

8. Helpful way to remember the 7 levels w Kings Play Cards On Fat Green Stools. w King Philip Came Over For Green Skittles.

9. Binomial Nomenclature w Developed by Carolus Linnaeus w Two-name system w Each organism has a genus and a species name w First name (genus); second name (species)

10. What rules are used to write scientific names? w An organism’s genus is always written first; the organism’s species is always written second w The genus is capitalized; the species is written in lower case w Scientific names of organisms are always italicized or underlined

11. Using the Classification System Field guides help identify organisms. -they highlight differences between similar organisms (like trees) Taxonomic Key (Dichotomous Key) -paired statements that describe the physical characteristics of different organisms

12. Taxonomic Key w 1a Fruits occur singly....................................................... Go to 3 w 1b Fruits occur in clusters of two or more......................... Go to 2 w 2a Fruits are round....................................................... Grapes w 2b Fruits are elongate................................................... Bananas w 3a Thick skin that separates easily from flesh.............Oranges w 3b Thin skin that adheres to flesh.............................. Go to 4 w 4a More than one seed per fruit............................ Apples w 4b One seed per fruit............................................ Go to 5 w 5a Skin covered with velvety hairs.................... Peaches w 5b Skin smooth, without hairs........................... Plums What steps would you use to identify a peach?