1. Classification

2. What is it? Classification: The action of grouping objects into useful units. Taxonomy: the science of classifying organisms.

3. The names of some organisms are really inaccurate as a scientific label. Inaccurate name is frog. More precise names are grass frog, tree frog, bull frog, etc.

4. The inaccurate scientific name is dog. The more precise label would be Bull Dog, Collie, German Shepherd, etc.

5. Aristotle Was one of the first taxonomists. He classified plants into grasses, bushes and trees. He classified animals depending on whether they lived on the earth, in the water or in the air (BUT it didn’t explain the fact that some birds live in the water and the air.)

6. Carolus Linnaeus (1707-1778) Swedish botanist and made the greatest contribution to taxonomy. He decided that organisms should be grouped based on similarities in body structure. Established binomial nomenclature: two part system to name and classify organisms.

7. In taxonomy the organisms are grouped in a set of categories: Kids Playing Catch On Freeway Get Squashed

8. Factors considered by taxonomists when classifying organisms 1.Structural similarities: Example: number of limbs, body covering, number of heart chambers, etc. 2. Cellular Organization: Some cells have a nucleus (eukaryotic) and others do not (prokaryotic).

9. 3.Genetic Similarities: the greater the similarity of DNA (genes) the more closely related the organisms are.

10. Binomial Nomenclature A set of scientific names formed by two words. The first term designates the Genus and the second designates the species. The Genus is written with a capital and the species with a lower-case letter the two names are in italics or underlined Example: Orca Whale  Orcinus orca Orcinus orca

11. Classification of some Animals Common Name:HumanGreat White Shark KingdomAnimalia PhylumChordata ClassMammaliaChrondrichthyes OrderPrimataLanbiformes FamilyHominidaeLamnidae GenusHomoCarchardon SpeciesHomo sapienscarcharias

12. Which Organism is the most different? TAXASquidAmerican Lobster Blue MusselAmerican oyster KingdomAnimalia PhylumMolluscaArthropodaMollusca ClassCephalopodMalacostracaBivalve OrderDecapod MytiloidaOstreoida FamilyLoliginidaeNephropidaeMytilidaeOstreidae GenusLolgioHomarusMystilusCrassostrea Speciesopalescensamericanusedulisvirginica Which two organisms are the most closely related?

13. Activity to do in a group! In a group organize these organisms. There is no right answer but you must explain why you made the specific group. Organisms: MooseOctopusPellicanSquid OysterDolphinCodHorse ClamLobsterEelShrimp ManateeShrimpClown FishSea Otter JellyfishCatfishMusselWalrus Hammer Head SharkKiller WhaleSeagull SeahorseCoyoteSquirrel Tuna

14. Activity continued… Organize the organisms based on Aristotle’s taxonomy. Live on Earth Live in the water Live in the air