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CLASSIFICATION

CLASSIFICATION. ADDING ORDER. Engage. Alien Planet Story. Explore. Making a Dichotomous Key. Explain. Why Classify? to bring order to the large number of various organisms Process is called taxonomy. Assigning Scientific Names. Early Efforts at Naming Organisms Used common names

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CLASSIFICATION

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  1. CLASSIFICATION ADDING ORDER

  2. Engage Alien Planet Story

  3. Explore • Making a Dichotomous Key

  4. Explain Why Classify? to bring order to the large number of various organisms Process is called taxonomy

  5. Assigning Scientific Names • Early Efforts at Naming Organisms • Used common names • Very confusing • Very complex • Binomial Nomenclature • Carolus Linnaeus in the 18th century • Each species is assigned a two part scientific name • Homosapien

  6. Linnaeus’s System of Classification Flowchart Section 18-1 Kingdom Phylum Class Order Family Genus Species

  7. Classification of Ursusarctos Section 18-1 Coral snake Abert squirrel Sea star Grizzly bear Black bear Giant panda Red fox KINGDOM Animalia PHYLUM Chordata CLASS Mammalia ORDER Carnivora FAMILY Ursidae GENUS Ursus SPECIES Ursus arctos

  8. Section Outline Modern Evolutionary Classification

  9. Appendages Conical Shells Crab Limpet Barnacle CLASSIFICATION BASED ON VISIBLE SIMILARITIES Traditional Classification Versus Cladogram Section 18-2 • Evolutionary Classification • Lines of evolutionary descent Crab Limpet Barnacle Gastropod Crustaceans Molted exoskeleton Segmentation Tiny free-swimming larva CLADOGRAM

  10. Traditional Classification Versus Cladogram Section 18-2 Appendages Conical Shells Crustaceans Gastropod • B. Classification Using Cladograms • Derived characters • Characteristics that appear in recent parts of the lineage Crab Crab Limpet Limpet Barnacle Barnacle Molted exoskeleton Segmentation Tiny free-swimming larva CLASSIFICATION BASED ON VISIBLE SIMILARITIES CLADOGRAM

  11. C. Similarities in DNA and RNA • Similarities at the molecular level show how closely organism are related

  12. Section Outline SixKingdoms System Kingdom ArcheaBacteria Kingdom EuBacteria Kingdom Protista Kingdom Fungi Kingdom Plantae Kingdom Animalia

  13. Eukaryotic cells Prokaryotic cells Kingdom Plantae Kingdom Protista Domain Bacteria Domain Archaea Kingdom Fungi Kingdom Animalia Kingdom Eubacteria Kingdom Archaebacteria Concept Map Section 18-3 Living Things are characterized by Important characteristics which place them in and differing Domain Eukarya Cell wall structures such as which is subdivided into which place them in which coincides with which coincides with

  14. Classification of Living Things Archaea Archaebacteria Prokaryote Cell walls without peptidoglycan Unicellular Autotroph or heterotroph Methanogens, halophiles Protista Eukaryote Cell walls of cellulose in some; some have chloroplasts Most unicellular; some colonial; some multicellular Autotroph or heterotroph Amoeba, Paramecium, slime molds, giant kelp Fungi Eukaryote Cell walls of chitin Most multicellular; some unicellular Heterotroph Mushrooms, yeasts Plantae Eukaryote Cell walls of cellulose; chloroplasts Multicellular Autotroph Mosses, ferns, flowering plants Animalia Eukaryote No cell walls or chloroplasts Multicellular Heterotroph Sponges, worms, insects, fishes, mammals DOMAIN KINGDOM CELL TYPE CELL STRUCTURES NUMBER OF CELLS MODE OF NUTRITION EXAMPLES Bacteria Eubacteria Prokaryote Cell walls with peptidoglycan Unicellular Autotroph or heterotroph Streptococcus, Escherichia coli Eukarya Key Characteristics of Kingdoms and Domains Section 18-3

  15. Elaboration • Donut Sort • Silly Science • Discover the silly scientific name of each of the given objects • Using a Dichotomous Key • You will use a real dichotomous key to classify organisms provided in the given pictures.

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