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CLASSIFICATION SYSTEMS. 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
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TAXONOMYaka “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 NOMENCLATUREthe 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 (1st 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