Classification of Living Things Funny… as the actual numbers of species in each successive taxon get smaller…the names somehow seem to get larger! Binomial Nomenclature • Two part naming system!!! • Carolus Linnaeus : scientist who came up with the idea of using characteristics. He named 1000s of living things using a taxonomic key!!! • He gave each one of them their scientific name. What two levels make up an organisms scientific name? • Genus and species • Scientific names are always written in latin or greek (makes them hard to say!) A taxonomic key is another word for dichotomous key. We use these to identify a species by looking at specific characteristics. Time for a few review questions!!! Are You Ready!!!! 8 levels of classification • • • • What is the most broad level of classification called? Kingdom How many kingdoms are there? There are 6 kingdoms all together • Can you name the 5 kingdoms? • Animal, plant, fungi, protist, bacteria, • Kingdoms are divided into smaller groups by which taxon? • Phylum/phyla • What are phyla divided into? • Classes • What are classes divided into? • Orders • Can you say all of the divisions in order? • kingdom, phylum, class, order, family, genus, species • From what two levels does an organism get its scientific name? • Genus and species (and always in that order) • If two organisms share the same kingdom but separate at the phylum level…what do you know about the two organisms? • They are very different • The farther down the classification chart two organisms go together tells you what about them? • They share similar characteristics. More on kingdoms!!!! •What is the second level of classification called? •Phylum……….. •How does this level compare to a kingdom? •This level is a little more specific….. There are fewer organisms than would be found in a kingdom • What is the next level of classification called? • Class …………. What can you tell me about this level? • It is even more specific. • What are the next levels of classification? • Order, family, genus, species • What happens as we move from one level to the next? • Each is more specific……….