Transcript Slide 1
Binomial Nomenclature: each species is assigned a two-part scientific name (Genus and Species names) Carl Linnaeus’ System of Classification: uses 7 taxonomic categories from smallest to largest It always helps me to remember this: King Philip Can Only Find Good Sex 1. Kingdom - (Least Specific) 2. Phyla (singular: phylum) 3. Class 4. Order 5. Family 6. Genus 7. Species (most specific) Phylogenetic Tree: Evolutionary history/relationship Clade: organisms in a branch Cladogram: phylogenetic diagram that specifies derived characters of clades Members of the same species can interbreed and produce fertile offspring Archebacteria – more extreme environments; prokaryotic; unicellular Ex. Volcanic hot springs Eubacteria – more general diversity; prokaryotic, unicellular *bacteria are difficult to classify, evol. relationships unclear, don’t fossilize well Kingdom Protista • • • • • Unicellular/Mulitcellular Eukaryotic Cells not specialized Autotrophs/Heterotrophs ex. amoeba, algae, kelp, slime molds, paramecium Kingdom Fungi Yeast Mildew • • • • Eukaryotic Club Fungi Multicellular/uni Have cell walls Heterotrophs - release digestive enzymes onto a food source and absorb nutrients ex. molds, mildews, yeast Kingdom Plantae • • • • Eukaryotic Multicellular Have cell walls Autotrophs (most) Mosses, ferns, flowering plants Kingdom Animalia • • • • • Eukaryotic No cell walls Heterotrophs Multicellular ex. sponges, insects, tigers Dichotomous Key 1a …Has feathers go to 2 1b … no feathers go to 3 OR 2a swims… duck 2b does not swim…hen 3a has legs … lizard 3b no legs … snake