So, our first stop in the six kingdoms of life is archaebacteria
Archaebacteria are single-celled prokaryotes originally thought to be bacteria. They are in the Archaea Domain and have a unique ribosomal RNA type. The cell wall composition of these extreme organisms allows them to live in some very inhospitable places, such as hot springs and hydrothermal vents.
our next stop is eubacteria
these things are pretty much the standard disease bacteria. but, they don't only carry bacteria, they help living organisms too, such as dogs or cats.
now the third of the kingdoms of life, protista
A protist is any eukaryotic organism that is not an animal, plant or fungus. The protists do not form a natural group, or clade, since they exclude certain eukaryotes; but, like algae or invertebrates, they are often grouped together for convenience. In some systems of biological classification, such as the popular five-kingdom scheme proposed by Robert Whittaker in 1969, the protists make up a kingdom called Protista, composed of "organisms which are unicellular or unicellular-colonial and which form no tissues".