Classification 2006-2007
Classification System to organize all living creatures plants animals microbes etc. Nowadays we can use DNA and protein sequencing to help us see similarities
Organizing the world of organsims The Tree of Life organize creatures by structure & function how they are built how they live organize them into groups of closely related creatures
Bacteria & Archaebacteria Eukaryote Prokaryote Classification 6 Kingdom system Prokaryotes No separate organelles in their cells Bacteria Archaebacteria Eukaryotes Separate organelles in their cells Protists Plants Fungi Animals Bacteria & Archaebacteria
Kingdom Archaebacteria Prokaryotes Kingdom Protist Kingdom Fungi Kingdom Plant Kingdom Animal Kingdom Archaebacteria Kingdom Bacteria Eukaryotes
Classification Kingdom Phylum Class Order Family Genus species
Carolus Linnaeus The Linnean system Homo sapiens proposed in 1700s each species has a 2 part name genus species Homo sapiens
Latin binomial 2 part scientific name Genus — larger group to which organism belongs always capitalized species — specific name for that organism always lowercase example: Linnaeus named humans Homo sapiens means “wise man” — perhaps in a show of hope & optimism
Genus groupings Classify organisms into broader groups Species that are closely related are grouped into the same genus Leopard Panthera pardus African lion Panthera leo Tiger Panthera tigris
Orders & families
Why not use common names? Misleading starfish dragonfly Confusing blue jay, blue coat, corn thief dog, perro, chien I swim, but I’m still a bird!
Why not use common names? But they all have only one scientific name! Pisaster ochraceus Pyrrhosoma nymphula Cyanocitta cristata
Any Questions? 2006-2007