Biodiversity.

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Presentation transcript:

Biodiversity

Domains Bacteria (Eubacteria) Archaebacteria Eukarya

Domain Bacteria (Eubacteria) Characteristics: Unicellular prokaryotes Peptidoglycan cell wall, cell membrane, ribosomes No membrane-bound organelles Naked DNA, single circular chromosome Asexual reproduction= binary fission Heterotrophs, photoautotrophs, chemoautotrophs Rods, spheres, spirals: Gram positive and gram negative

Domain Bacteria (Eubacteria) Examples Bacillus, E. Coli, Streptococcus, cyanobacteria= “blue-green algae”

Domain Archaebacteria Characteristics Unicellular prokaryotes Cell wall (no peptidoglycans), cell membrane, ribosomes, no membrane-bound organelles DNA + histone proteins, single circular chromosome Asexual reproduction = binary fission Extremophiles: halophiles, thermophiles, methanogens

Domain Archaebacteria Examples: Methancoccus, Halobacterium, Thermoproteus

Domain Eukarya Characteristics: Unicellular and multicellular eukaryotes Membrane-bound organelles: nucleus, mitochondria, chloroplasts, Golgi complex, ER, lysosomes Heterotrophs, autotrophs

Domain Eukarya Examples: Animals, plants, protists, fungi

Domain Eukarya- Kingdom Protista Mode of nutrition Autotrophs (algae) Heterotrophs (predators) Cell wall Some have cell wall Some have only cell membrane Diatoms and forams have silica (glass) cell walls

Domain Eukarya- Kingdom Protista Reproduction Mostly asexual Binary fission budding Sometimes sexual Other Photoplankton and zooplankton Locomotion via flagella, cilia, and pseudopods Mostly unicellular and some multicellular Examples: Euglena, amoeba, paramecium, and kelp

Domain Eukarya- Kingdom Fungi Mode of nutrition- Heterotrophs (by absorption) Cell wall- Cell wall (chitin)

Domain Eukarya- Kingdom Fungi Reproduction Mostly sexual Asexual for unicellular yeasts Other multi=-nucleated cells basidiomycetes= mushrooms Bread mold yeast

Domain Eukarya- Kingdom Plantae Mode of nutrition Autotrophs (photosynthesis) Cell wall Cell wall (cellulose)

Domain Eukarya- Kingdom Plantae Reproduction Sexual Alternation of generations Spores and seeds Asexual Cuttings, tubers, etc Other Mosses Ferns Gymnosperms angiosperms

Domain Eukarya- Kingdom Animalia Mode of nutrition Heterotrophs (ingestion) Cell wall no

Domain Eukarya- Kingdom Animalia Reproduction- Sexual (gametes) Other- All multicellular Invertebrates: sponges, worms, molluscs, arthropods Vertebrates: fish, amphibians, reptiles, birds, and mammals