PSYO 2160 Lecture Notes - Lecture 1: Arthropod, Eukaryote, Guppy
23 Nov 2017
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Document Summary
Taxonomy (or systematics): the theories and techniques of naming, describing, and classifying organisms; two subfields. Laws of classifications change depending on the environment. Animals can be classified in a variety ways (physiology, behaviours, ect. : taxinomy (taxis, arrangement and nomos, law): the study of the laws of classification, taxionomy (taxis, unit and onoma, name): application of the principles of taxinomy. Classify animals based on animals across species. Closer the relation, the more similar we expect to their behaviors. Node: represents the common ancestor of any species that come after it. Root: depends on the question you are asking and how far back you want to go. Signifies the common ancestors of all species on the phylogenetic tree. Did we evolve from chimpanzees: no! Homology: traits shared by two or more species because share a common ancestor: skeleton do not have a tail, expanded rib cage, location of shoulder blades, both mammals, both produce milk for their babies.
