chap 23 notes

chap 23 notes - Systematics-Systematics = diversity of...

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Systematics -Systematics = diversity of organisms and their evolutionary relationships - DKPCOFGS = Does King Patel Come Over For Great Sex? = Domain Kingdom Phylum Class Order Family Genus Species -PhyloCode = based on evolutionary relationships -Organisms grouped into clades (common ancestors) -Plantae & Animalia, after microscope Protista (Ernst Haeckel) -Protists = unicellular, aquatic eukaryotic organisms. - Whittaker proposed 5 kingdom classification = based on cell struc & means of obtaining food. - Fungi = not photosynthetic & must absorb nutrients 3 Domains: Bacteria, Archaea, Eukarya 6 Kingdoms: 1) Bacteria: Prokaryotes, lack nuclei, unicellular, have cell walls (made of peptidoglycan) 2) Archaea: Prokaryotes, unicellular, cell walls (not made of peptidoglycan) 4) Fungi: Eukaryotes, heterotrophic, chitin cell walls, hyphae that infiltrate food/habitat 5) Plantae: Eukaryotes, multicellular, photosyn., cellulose cell walls, alt. of generations. 6) Animalia: Eukaryotes, multicellular, heterotrophs, complex organ systems. -viruses not in any domain (not living) -evolution = not always linear evolution & variation through horizontal gene transfer -eukaryotic cells most likely evolved from prokaryotic cells -Ring of life: HGT between bacteria and Archaea = eukaryotes -phylogeny = evolutionary history of a group of organisms from a common ancestor
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chap 23 notes - Systematics-Systematics = diversity of...

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