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CLASSIFICATION ADDING ORDER.

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Presentation on theme: "CLASSIFICATION ADDING ORDER."— Presentation transcript:

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 Homo sapien

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

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

8 Section Outline Modern Evolutionary Classification

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

10 CLASSIFICATION BASED ON VISIBLE SIMILARITIES
B. Classification Using Cladograms Derived characters Characteristics that appear in recent parts of the lineage Traditional Classification Versus Cladogram Section 18-2 Appendages Conical Shells Crustaceans Gastropod Crab Barnacle Limpet Crab Barnacle Limpet 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 Six Kingdoms System Kingdom ArcheaBacteria Kingdom EuBacteria
Section Outline Six Kingdoms System Kingdom ArcheaBacteria Kingdom EuBacteria Kingdom Protista Kingdom Fungi Kingdom Plantae Kingdom Animalia

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

14 Classification of Living Things
Key Characteristics of Kingdoms and Domains Section 18-3 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 Archaea Archaebacteria Cell walls without peptidoglycan Methanogens, halophiles Protista Eukaryote Cell walls of cellulose in some; some have chloroplasts Most unicellular; some colonial; some multicellular Amoeba, Paramecium, slime molds, giant kelp Fungi Cell walls of chitin Most multicellular; some unicellular Heterotroph Mushrooms, yeasts Plantae Cell walls of cellulose; chloroplasts Multicellular Autotroph Mosses, ferns, flowering plants Animalia No cell walls or chloroplasts Sponges, worms, insects, fishes, mammals Eukarya Classification of Living Things

15 Using a Dichotomous Key
Strange Science You will use a real dichotomous key to classify the Alien organisms in the given pictures. Work in Pairs. Practice Problems On Your Own. When you are done share & discuss quietly.

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