CLASS27 - II. How taxonomy got started A. Important dude -...

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Jim Bidlack - BIO 1304 GENERAL BOTANY Lecture 27 - Classification I. Science of classification: taxonomy A. Most useful unit - species 1. Biological species - same species if members mate and produce fertile offspring under normal conditions 2. Species can evolve through natural selection a) Sources of variation 1) Mutations - DNA substitution, deletion, and insertion 2) Migration - move to another location 3) Recombination - meiosis, crossing over 3. Speciation a) Reproductive isolating mechanisms 1) Mechanical, behavioral, gamete isolation, time isolation, hybrid inviability b) Modes of specitation 1) Allopatric (isolated location), parapatric (transition area), sympatric (others - ecological, behavioral, etc.)
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Unformatted text preview: II. How taxonomy got started A. Important dude - Carolus Linnaeus - made up descriptive latin names 1) Last two words most important - binomial system 2) Classification - KPCOFGS a) Basis of appearance - phenetic b) Evolutionary basis - phylogenetic III. Overall scheme to evolution - important because it helps us understand life Fungi Monerans =====> Protistans =====> Plants (bacteria) (single celled)--------------- "microbes" --------------Animals From single cells ===============> multicelled organisms IV. Where we go from here: Fungi (MYCOTA), Algae (PROTISTA) and Plants (PLANTAE - mosses, ferns, conifers, angiosperms)...
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