Eubacteria
Like Archaebacteria, this kingdom is made up of unicellular prokaryotic organisms. Eubacteria is also both heterotrophic and autotrophic. These organisms live inside animals in places like in the stomach or the intestines. They eat what isn't digested by the animals and protect the intestines from harmful bacteria. In return, they give the animals nutrients. This is an example of a Mutual Relationship. Some examples of these organisms is Escherichia Coli (E.Coli) and Lactococcus Lactis (L.Lactis). This group reproduces asexually. Unlike Archaebacteria however, their cell walls do come with peptidoglycans, making the cell walls flexible and elastic.
Gleocapsa (top right), Anabaena spiroides (top left), Gram-posotive (middle right), Gliding (middle), Gram-negative (bottom left)