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    Difference Between Archaebacteria and Eubacteria | Free Biology Notes

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    Today, we’ll learn the difference between archaebacteria and eubacteria.

    Difference between Archaebacteria and Eubacteria

    CharacteristicsArchaebacteriaEubacteria
    Cell WallCell walls lack peptidoglycanCell walls contain peptidoglycan
    HabitatFound in extreme environmentFound everywhere in the environment
    Evolutionary historyThese are primitive and oldest bacteriaThese are advanced or true bacteria
    Metabolic activityThey are always aerobicThey may be aerobic or anaerobic
    SizeSize is 0.1-15 μm in diameterSize is 0.5-5 μm in diameter
    Body OrganizationThey are simple in their organizationThey are more complex than archaebacteria
    Sensitivity to antibioticsLess sensitive to antibioticsMay show sensitivity or resistance to antibiotics
    ReproductionReproduce asexually by binary fissionReproduce through binary fission or other methods like conjugation
    MethanogenesisSome are capable of methanogenesisNot involved in methanogenesis
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