The second Domain is Eubacteria. This Domain includes most of the prokaryotes and all of the bacteria that we are familiar with. Unlike Archaebacteria these organisms need oxygen to survive as they are aerobes. They are members of the prokaryotes as they lack a nucleus and membrane based organelles. Their cell walls contain peptidoglycan and their DNA is unique to Eubacteria. All members are microscopic and found in moderate environments, as they are more prominent in middle temperature biomes around the world rather than the blazing hot desert or shivering cold artic. Many of the food products that humans eat every day are because of the work of eubacteria. For example, cheese curds that you may find in poutine that come from the cheesemaking process are a direct result of eubacteria. 5 examples of these organisms are: E.Coli, Y.Pestis, S.Pneumoniae, Green Sulfur Bacteria and Actinobacteria.
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