Why are archaebacteria not classified in the same kingdom as eubacteria?

Answer 1

They use to belong to the same kingdom: Moneran, but scientists thought that they were important enough to belong in their own kingdom, especially since archaebacteria is the oldest microorganism. So the answer is No, they belong in different kingdoms. (:

Answer 2

Archaebacteria are not classified in the same kingdom as eubacteria because they have fundamental genetic and biochemical differences, such as unique cell membrane components and gene sequences. These distinctions suggest that archaebacteria have evolved separately from eubacteria and are more closely related to eukaryotes in terms of evolutionary history.

Answer 3

They are not very closely related genetically, and are actually considered one of the three "domains" of life, along with Eukaryotes (organisms with true nuclei). Archaebacteria may represent the oldest forms of life as they are found in extreme environments (such as high heat and saline waters) where little else can live, which may have been some of the earliest life-supporting environments on Earth. Eubacteria may have arisen to dominance once Earth's environment stabilized. There is genetic evidence that Eukarya and Archaea are more closely related than Archaea and Eubacteria.

Answer 4

Big black wiener!, or little wieners.