Todays objectives Classify organisms based on their adaptations

Today’s objectives • Classify organisms based on their adaptations • Determine what species are more closely related based on physical characteristics

Taxonomy • Taxonomy – the science of classifying organisms • Why do we need a system to classify and name organisms? spider monkey sea horse gray wolf firefly crayfish mudpuppy horned toad jellyfish These names can vary by region and can also be misleading. Is a sea horse really a horse?

Naming Organisms • Organisms have common & scientific name - all organisms have only 1 scientific name -usually Latin or Greek -developed by Carolus Linnaeus • This two-word naming system is called • Binomial Nomenclature

Binomial Nomenclature • written in italics (or underlined) -1 st word is Capitalized –Genus -2 nd word is lowercase —species • Examples: Felis concolor, Ursus arctos, Homo sapiens, Panthera leo , Panthera tigris. These can also be abbreviated as (P. tigris or P. leo)

Linneaus also devised the system we use to organize animals • • Kingdom Phylum Class Order Family Genus Species • • King Phillip Came Over For Good Soup

Linnaean Classification System Human Lion Tiger • Kingdom Animalia • Phylum Chordata • Class Mammalia • Order Primate Carnivora • Family Homindae Felidae • Genus Homo Panthera • Species sapiens leo tigris