BIOL 1202 : Notes 2 - Test 2
Document Summary
Phylogeny: field of study that reveals the evolutionary history of a species or group of related species. Systematics: an analytical approach to understanding the diversity and relationships of organisms. Hierarchical classification (figure 26. 3: linnaeus also introduced the system for grouping species in decreasingly broad categories, utilized today, kingdom, phylum, class, order, family, genus, species, as you move up from bottom to top, you become more specific. Linking classification & phylogeny (figure 26. 4: systematics depict evolutionary relationships in branching phylogenetic trees, each branch point (node) represents the divergence of two species, lines represent lineages. Concept 26. 2: phylogenies are inferred from morphological and molecular. Data: morphology: shape, molecular data: its dna. Concept 26. 3: shared characteristics are used to construct phylogenetic. Trees: your most recent common ancestor should share a lot of the same structures as you, lots of shared characteristics between species indicates that divergence occurred recently.
