How many Archaea species are there?
the total number of Archaean species cannot be estimated with any accuracy
Not too many people know that Archaea represents a domain or kingdom of single-celled microorganisms. It is important to know that the classification of Archaea into species is extremely controversial. Specialists consider that the total number of Archaean species cannot be estimated with any accuracy. It is interesting to know that Archaea and bacteria are quite similar in size and shape. Keep in mind that Archaea species possess genes and several metabolic pathways that are more closely related to those of eukaryotes.