Chapter 17: The Tree of Life How Do We Classify Organisms

There are 1.9 million different identified species (alive and extinct) How do we group the place where the utensils are place? Draw it in the space below There are 1.9 million different identified species (alive and extinct) How can we keep all these organisms in order?

Classification is the method of logically grouping organisms based on some common characteristics Physical & Structural similarities Biochemistry– more similar the proteins the more similar the DNA Evolutionary history

Binomial Nomenclature. Think of the many words you can use to describe something that is really, really good. Binomial Nomenclature. Every species is given a two-part scientific name using Latin words Homo sapiens – that’s us Canis familiaris – domestic dog Felis domestica – house cat

8 Major Levels of Classification Dear King Philip Came Over From Germany Saturday

The Taxonomic order: From the largest, most inclusive group to the smallest, most exclusive, specific taxa. Taxa Human Grizzly Chimp Domain Eukarya Eukarya Eukarya Kingdom Animalia Animalia Animalia Phylum Chordata Chordata Chordata Class Mammalia Mammalia Mammalia Order Primate Carnivora Primate Family Hominoidae Ursidae Hominoidae Genus Homo Ursus Pan Species sapiens arctos troglodyte Which two organisms are more closely related and why?

The Six Kingdom System Kingdom Cell Type # of Cells Nutrition Representative organism Archaebacteria Prokaryotic Unicellular Autotrophic or Heterotrophic Blue-green bacteria, Methanogens Eubacteria E.coli, Staphylococcus, Streptococcus, Spirochetes Protista Eukaryotic Unicellular, filament or colonial Amoeba, Paramecium, Euglena Fungi Uni or Multicellular Absorptive Heterotroph Yeast, Mushrooms, Molds Plantae Multicellular Autotrophic Mosses, ferns, Horsetails, Conifers, Flowering plants Animalia Ingestive Sponges, Coral, Sea stars, EW, Insects, Fish, Amphibians, Reptiles, Birds, Mammals

Name their Kingdom

Name the 6 Kingdoms Eubacteria Archaebacteria Protista Plantae Animalia Fungi

Cladistics Takes an evolutionary look into classification Cladogram is an evolutionary tree that hypothesizes how species may be related to each other through common ancestors Clade Group of species Derived Characters Trait that is common to all the species up the cladogram

Outgroup