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February 3, 2011 Do Now: What is taxonomy? The science of classifying and naming organisms. Aim: SWBAT How Aristotle and Linnaeus classified organisms HW: Read pg. 200 - 201 Page 203 # 1 and 2 1 Aristotle - Greek Philosopher • Divided animal kingdom into smaller groups based on where animals lived. ~ Land ~ Water ~ Fly through the air. • Divided organisms into two large kingdoms: Plant and Animal 2 Linnaeus: • Created a system to classify organisms based on similarities in body structures and systems. ~ size ~ shape ~ color ~ methods of obtaining food 3 In the 1700’s Carolus Linnaeus classified organisms using the criteria of body structures and systems. • He divided organisms into TWO groups called KINGDOMS: PLANTAE • ANIMALIA He divided each kingdom into smaller groups. Each smaller group was called a GENUS. Each genus was divided into smaller groups called SPECIES. 4 KINGDOM GENUS GENUS SPECIES SPECIES SPECIES SPECIES (3 Levels of Classification) 5 Classification: to group ideas, information, or objects based on similarities. Taxonomy: is the science of classifying and naming organisms. Kingdom: the largest of the taxonomic categories. 6