TAXONOMY aka “systematics” the study of the classification of all living things
WHY CLASSIFY? • Sets up an organized system so scientists can communicate. • Shows evolutionary linkages between organisms.
The Hierarchical System Kingdom Phylum Class Order Family Genus Species
BINOMIAL NOMENCLATURE the system used to identify all organisms using a two part Latin name
Keys to Binomial Nomenclature Felis domesticus • Must be in Latin • Must be in italics or underlined • Genus (1 st word) must be capitalized • Species must be lowercase
Examples of Common Scientific Names • Canis familiaris - dog • Felis domesticus - cat • Canis lupus - wolf • Vulpes vulpes - fox • Populus deltoides - cottonwood
There are estimated to be 5 -10 million species in this world. We have scientifically identified 1. 5 million of them.
THE FIVE KINGDOMS Monera Protista Fungi Plantae Animalia
Monera • Prokaryotic • Unicellular • Bacteria
Protista • Eukaryotic • Single celled / simple multicellular • Heterotrophs and Autotrophs • Includes organisms that “don’t fit”
Fungi • Eukaryotic • Chitin in wall (soft cell wall) • Heterotrophic • Reproduce by spores
Plantae • Eukaryotic • Multicellular • Cells with cellulose in cell wall • Autotrophic • Photosynthetic
Animalia • Eukaryotic • Multicellular • Cells without walls • Heterotrophic