I-Classification: grouping of organisms, to help learn more about them. A- Classification: procedure of putting organisms in groups according to their. Structure Behavior Food Needs Chemical make up 1- Organisms are grouped by individuals with similar body structures. 2-The more structural similarities organisms have the more alike they are. B- How Organisms are grouped into Kingdoms: In 1737, a Swedish scientist named Carolus Linnaeus devised a classification system, he grouped organisms based on internal and external structures. The largest groups he called kingdoms. There are five kingdoms. 1- Five Major Kingdoms. a- Moneran {Bacteria} Single celled organisms, that have NO NUCLEI, or other organelles. Some carry out Photosynthesis. b- Protist: {Amebas} Most are single celled but some are multi-cellular. They HAVE A NUCLEUS and other organelles. Some carry out photosynthesis. c- Fungus: {Molds & Mushrooms} Multicellular organisms that absorb food from dead or living organisms. d- Plant: Multi-cellular organisms that undergo photosynthesis, and are NOT mobile. e- Animal: Multi-cellular organisms that eat other organisms for food. Most can move about on their own. C-Subdivisions of the 5 Kingdoms Kings 1- Kingdoms are divided into Phylum. Play 2- Phylum into Class. Chess 3- Class into Order. On 4- Order into Families. Flat 5- Families into Genus. Glass 6- Genus into Species. Surfaces 7- Species are organisms that can reproduce with one another. Group Wolf Dog Horse Grasshopper Chimpanzee Kingdom Animalia Animalia Animalia Animalia Animalia Phylum Chordate Chordate Chordate Arthropod Chordate insectae Mammalia Class Mammalia Mammalia Mammalia Order Carnivore Carnivore Ungulate Orthoptera Primates Family Canidae Canidae Equidae Locustidae Pongidae Genus Canis Canis Equus Schistocerca Pan Species lupus familiaris caballus americana troglodytes E- Identifying Organisms D-Naming Organisms 1-Common Names: Can be confusing. People who live far apart or speak different languages may use different names for the same type of organism 2-Linnaeus: set up the system for naming organisms. He gave each a two word scientific name = binomial nomenclature. a- Scientific Name: indicates the Genus and species. 3- The name is made up of Latin or is Latinized, put in the form similar to Latin. 4- The first word is the Genus and is Capitalized. ~The second is the species and is lower case. ~Scientific Names are underlined or in Italics. Felis leo = Lion Felis domestica = House Cat Felis tigrus = Tiger Galeocerdo tigrus = Tiger Shark Homo sapiens = Human