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The Classification of Biological Life
- 1. The Organization of Life
- 2. Classification System • Three Domains – Domain is a taxonomic category above the kingdom level – 3 Basic groups: Two prokaryotes and 1 eukaryotes • Domain 1= Bacteria (prokaryotes) • Domain 2= Archaea (ancient Prokaryotes) • Domain 3= Eukarya (all eukaryotes)
- 3. Now for the New Stuff The Diversity of Living Things • Most scientists classify organisms into six kingdoms based on different characteristics. • Others classify using 5 placing all bacteria into the kingdom Monera. Construct a foldable for the Classification of living things. Use the instructions provided at your table to complete it.
- 4. Archaebacteria • Single celled (unicellular) • Lack cell nucleus (Pro or Eukaryotic?) • Reproduce by dividing in half (binary fission) • Found in harsh environments • Heterotrophic: absorption • Archae means ancient Halobacteria – found in salty water conditions
- 5. Eubacteria • Single celled (unicellular) • Lack cell nuclei (prokaryotic) • Reproduce by dividing in half (asexual) • Incredibly common E. Coli
- 6. Fungi • Absorb their food through their body surface (heterotrophic) • Have cell walls that allow them to stand upright • Have no chlorophyll • Most live on land Fly Agaric Mushroom – very poisonous
- 7. Protists • Most single celled but some have many cells (both uni and multicellular) • Eukaryotic • Live in water environments • Some go through photosynthesis (autotrophic) while others are consumers(heterotrophic) • Most reproduce asexually Star Protists
- 8. Plantae • Have many cells (multicellular) • Make their own food by photosynthesis (autotrophic) • Have cell walls (eukaryotic) • Have roots that tap resources underground and leaves that intercept light and gases in the air. • Leaves and roots are connected by vascular tissue • Classified as angiosperm (flowering plant) or gymnosperm (plants whose seeds are not enclosed) Gymnosperm Angiosperm
- 9. Animalia • Have many cells (multicellular) • Have no cell walls • Ingest their food for energy (heterotrophic) • Live on land and in water • Mostly sexual reproduction with few exceptions • Classified as invertebrates (no backbone) or vertebrates (backbone)Vertebrate Invertebrate
- 10. Sample Plant Test Questions 1. What is the main difference between vascular and non vascular plants? 2. What is the hole in the diagram? What controls this hole? 3. What energy is produced during photosynthesis and how is it used during cell respiration? 4. What would a plant be lacking for it to be pollinated through the wind instead of insects?
- 11. Sample Classification Test Questions 1. Which kingdoms have organisms that are autotrophic? 2. How do you think the advancements in DNA analysis have changed the way we classify animals? 3. How are Protista and fungi similar? 4. What are some characteristics specific to Fungi? 5. Which kingdoms have photosynthetic organisms?
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