20: Phylogenies and the History of Life Last updated Save as PDF Page ID12586 Contributed by BoundlessGeneral Microbiology at Boundless 20.1: Organizing Life on Earth20.1A: Phylogenetic Trees20.1B: Limitations of Phylogenetic Trees20.1C: The Levels of Classification20.2: Determining Evolutionary Relationships20.2A: Distinguishing between Similar Traits20.2B: Building Phylogenetic Trees20.3: Perspectives on the Phylogenetic Tree20.3A: Limitations to the Classic Model of Phylogenetic Trees20.3B: Horizontal Gene Transfer20.3C: Endosymbiotic Theory and the Evolution of Eukaryotes20.3D: Web, Network, and Ring of Life Models