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Taxonomic Groups

Taxonomic Groups. Biology 8(C). Learning Objectives C ompare characteristics of taxonomic groups, including archaea, bacteria , protists , fungi, plants, and animals. Taxonomic Groups. All living organisms are grouped into one of a few major categories.

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Taxonomic Groups

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  1. Taxonomic Groups Biology 8(C)

  2. Learning Objectives • Compare characteristics of taxonomic groups, including archaea, bacteria, protists, fungi, plants, and animals • Taxonomic Groups

  3. All living organisms are grouped into one of a few major categories. • Most widely accepted classification system used by taxonomists groups organisms into six major groups or kingdoms • Archaea • Bacteria • Protista • Fungi • Plantae • Animalia • Taxonomic Groups

  4. Archaea– single-celled microorganisms • Examples: • Methane-producing archaea • Sulfur-producing archaea • Thermophiles Characteristics • Microscopic • Many live in extreme environments • Unicellular prokaryotes • Unique cell wall • Autotrophs or heterotrophs • Archaea Image by Wing-Chi Poon [CC-BY-1.0]

  5. Bacteria– single-celled microorganisms • Examples: • E. coli • Salmonella • Streptococcus • Staphylococcus Characteristics • Microscopic • Unicellular prokaryotes • Cell wall made of peptidoglycan • Autotrophs or heterotrophs • Bacteria

  6. Protista – most diverse kingdom • Examples: • Algae • Paramecia • Amoeba • Diatoms Characteristics • Unicellular or multicellular • Eukaryotes • Autotrophic or heterotrophic • Some have cell walls • Many are microscopic • Many are aquatic • Some are motile • Protista

  7. Fungi – similar to plants but not photosynthetic • Examples: • Mushrooms • Yeasts • Molds Characteristics • All eukaryotes • Some unicellular • Most multicellular • Cell wall made of chitin • Absorb nutrients • Many are saprobes • All sessile • Fungi Image by Maciej Lewandowski [CC-BY-1.0]

  8. Plantae – both vascular and nonvascular plants • Examples: • Mosses • Ferns • Conifers • Flowering plants Characteristics • All eukaryotes • Most multicellular • Some unicellular • Cell wall made of cellulose • Photosynthetic autotrophs • Contain chloroplasts • Sessile • Plantae Image by Eric Guinther [CC-BY-1.0]

  9. Animalia – most complex kingdom • Vertebrates • Invertebrates • Examples: • Mammals • Birds • Insects • Worms Characteristics • Multicellular (eukaryotes) • No cell walls • Heterotrophic • Most are motile • Animalia Image by Eric Guinther[CC-BY-1.0]

  10. Taxonomic Groups

  11. Learning Objectives • Compare characteristics of taxonomic groups, including archaea, bacteria, protists, fungi, plants, and animals • Taxonomic Groups

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