Classification of Living Things CHAPTER NEW CHAPTER Classification of Living Things the BIG idea Scientists have developed a system for classifying the great diversity of living things. 7.1 Scientists develop systems for classifying living things. 7.2 Branching diagrams show biological relationships. 7.3 Classification systems change as scientists learn more. CHAPTER OUTLINE CHAPTER RESOURCES

Scientists develop systems for classifying living things. 7.1 Scientists develop systems for classifying living things. CALIFORNIA Content Standards 7.3.d Students know how to construct a simple branching diagram to classify living groups of organisms by shared derived characteristics and how to expand the diagram to include fossil organisms. dichotomous key classification taxonomy binomial nomenclature genus CHAPTER RESOURCES SECTION OUTLINE

Scientists develop systems for classifying living things. 7.1 Scientists develop systems for classifying living things. dichotomous key Animalia classification Chordata taxonomy Reptilia binomial nomenclature Testudines Spotted turtle Clemmys guttata Emydidae genus Clemmys Guttata SIMULATION Use an interactive dichotomous key. CLASSZONE.COM CHAPTER RESOURCES SECTION OUTLINE

Branching diagrams show biological relationships. 7.2 Branching diagrams show biological relationships. CALIFORNIA Content Standards 7.3.d Students know how to construct a simple branching diagram to classify living groups of organisms by shared derived characteristics and how to expand the diagram to include fossil organisms. cladogram derived characteristic CHAPTER RESOURCES SECTION OUTLINE

Branching diagrams show biological relationships. 7.2 Branching diagrams show biological relationships. cladogram moss fern pine tree flowering plant derived characteristic flowers seeds vascular system multicellular CHAPTER RESOURCES SECTION OUTLINE

Classification systems change as scientists learn more. 7.3 Classification systems change as scientists learn more. CALIFORNIA Content Standards 7.3.d Students know how to construct a simple branching diagram to classify living groups of organisms by shared derived characteristics and how to expand the diagram to include fossil organisms. domain vertebrate invertebrate CHAPTER RESOURCES SECTION OUTLINE

Classification systems change as scientists learn more. 7.3 Classification systems change as scientists learn more. The most popular system of classification in use today is a three-domain system that includes six kingdoms of organisms. domain vertebrate CLASSIFICATION OF LIVING THINGS invertebrate Domain: Archaea Domain: Bacteria Domain: Eukarya Kingdom: Archaea Kingdom: Bacteria Kingdom: Protista Kingdom: Plantae Kingdom: Fungi Kingdom: Animalia CHAPTER RESOURCES SECTION OUTLINE

7.1 Scientists develop systems for classifying living things. I. Scientists develop systems for classifying living things. dichotomous key classification A. Scientists provide a key for identifying species. taxonomy B. Linnaeus named more than 11,000 species. binomial nomenclature 1. Classification and Taxonomy 2. Using Classification genus 3. Naming Species C. Organisms can be classified into seven levels. CHAPTER RESOURCES KEY CONCEPT SUMMARY

Branching diagrams show biological relationships. 7.2 Branching diagrams show biological relationships. II. Branching diagrams show biological relationships. cladogram A. Taxonomists study biological relationships. derived characteristic 1. Physical Evidence 2. Genetic Evidence B. Branching diagrams show how organisms evolved. 1. Common Ancestors 2. Diagramming Taxa 3. Cladograms C. Branching diagrams help scientists test their hypotheses. CHAPTER RESOURCES KEY CONCEPT SUMMARY

7.3 Classification systems change as scientists learn more. III. Classification systems change as scientists learn more. domain A. Taxonomy changes as scientists make discoveries. Plantae 1. Three Domains Animalia 2. Six Kingdoms Protista B. The two most familiar kingdoms are plants and animals. Fungi 1. Plantae Archaea 2. Animalia Bacteria C. Other organisms make up four more kingdoms. 1. Protista 2. Fungi CHAPTER RESOURCES 3. Bacteria 4. Archaea KEY CONCEPT SUMMARY

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