The members of Kingdom Monera may be unicellular, but that doesn’t make them any less complex. Take, for instance, the difference between eubacteria and archaebacteria. Under a microscope, these two would look similar: two single-celled organisms with no nuclear membrane.

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It’s why, in fact, that no one realized that these two belonged to different categories until 1977 when Carl Woese discovered Archaea and archaebacteria by comparing their 16S ribosomal RNA. Today, let’s explore the difference between these and eubacteria.

What Is Archaebacteria?

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Image via Pixabay user Geralt

Archaebacteria: Asexually (Fission, budding, fragmentation)

Eubacteria: Spores to remain dormant through non-inhabitable conditions

Archaebacteria reproduce through means such as fission (splitting into two), budding (growing a new organism from an existing organism), and fragmentation (splitting an organism into multiple pieces and then growing new organisms from those pieces).

Eubacteria, however, comes in spores. These are dormant structures designed to withstand environmental conditions that could kill it.

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Although these two types of bacteria are extremely small, the differences are very significant: eubacteria is very ubiquitous these days and can be found everywhere, while archaebacteria can only be found in certain conditions.