Chapter Outline (See related pages) 20.1 The Classification of Organisms The Problem with Common Names Taxonomy Phylogeny 20.2 A Brief Survey of the Domains of Life The Domain Bacteria The Domain Archaea The Domain Eucarya 20.3 Acellular Infectious Particles Viruses Viroids: Infectious RNA Prions: Infectious Proteins HOW SCIENCE WORKS 20.1: New Information Causes Changes in Taxonomy and Phylogeny HOW SCIENCE WORKS 20.2: Cladistics: A Tool for Taxonomy and Phylogeny OUTLOOKS 20.1: A Bacterium that Controls Animal Reproduction
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