This paper will outline specific, identifiable and repeatable growth stages of the cross-domain bacteria (CDB) and its associated forms. It will be seen that a wide variety of growth forms will ultimately emerge from what appears to be a simple, non-descript spherical living entity; as such the term 'pleomorphic' is fully justified in this presentation. This is the case even when the study is restricted to the most primitive form of existence (i.e., the CDB) and this sets the stage to for us anticipate a high level of survivability and adaptability for the organism. Thus far, this has certainly been proven to be the case, as the means to eradicate or destroy the organism in any meaningful way appears to be unavailable under the current state of knowledge.