ANTH 1001 : Exam 2
Document Summary
Phylogeny and the tree of life: phylogeny: the evolutionary history of a species or group of related species, systematics: an analytical approach to understanding the diversity and relationships of organisms. Concept 26. 1: phylogenies show evolutionary relationships: taxonomy- the ordered division of organisms into categories based on a set of characteristics used to assess similarities and differences. Hierarchica; classification: linnaeus also introduced the system for grouping species in increasingly broad categories, derek keeps playing cool, original, fun, guy songs. Linking classification and phylogeny: systematists depict evolutionary relationships in branching phylogenetic trees, each branch point (node) represents the divergence of two species, deeper branch points represent greater amounts of divergence, lines represent lineages, figure 26. 4. Concept 26. 2: phylogenies are inferred from morphological and molecular data. Get picture: yes, they share a common ancestor, no, they are similar due to convergent evolution, no, they are similar due to random factors. Concept 26. 3: shared characters are used to construct phylogenetic trees.
