Name _____________________________ Period _________ AP Biology Date ______________________ 1 of 7 Developed by Kim B. Foglia ? www.ExploreBiology.com ? ?2010 REVIEW UNIT 7: BIODIVERSITY (CLASSIFICATION / TAXONOMY / SYSTEMATICS) DOMAINS 1. Cladogram or phylogenetic tree (an evolutionary tree diagram) illustrating the relationship between the three domains. 2. Key characteristics that distinguish the three domains. DOMAIN CHARACTERISTICS EXAMPLES Bacteria (Eubacteria) unicellular prokaryotes peptidoglycan cell wall, cell membrane, ribosomes no membrane-bound organelles naked DNA, single circular chromosome, asexual reproduction = binary fission heterotrophs, photoautotrophs, chemoautotrophs rods, spheres, spirals; Gram positive & negative stain