Classification

Classification Binomial Nomenclature: each species is assigned a two-part scientific name (Genus and Species names)

Classification It always helps me to remember this: King Philip Can Only Find Good Sex Carl Linnaeus’ System of Classification: uses 7 taxonomic categories from smallest to largest 1. Kingdom - (Least Specific) 2. Phyla (singular: phylum) 3. Class 4. Order 5. Family 6. Genus 7. Species (most specific)

Classification

Classification

Classification Phylogenetic Tree: Evolutionary history/relationship

Classification Clade: organisms in a branch Cladogram: phylogenetic diagram that specifies derived characters of clades

Classification

Classification

Classification Members of the same species can interbreed and produce fertile offspring

The Kingdoms 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 eukaryotic Multicellular/uni have cell walls Yeast Mildew eukaryotic Multicellular/uni have cell walls heterotrophs - release digestive enzymes onto a food source and absorb nutrients ex. molds, mildews, yeast Club Fungi

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 2a swims… duck 2b does not swim…hen 3a has legs … lizard 3b no legs … snake OR