Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan. This bacterium derives nutrition by digesting human intestinal contents. Thus, this bacterium is an

Anaerobic Chemoheterotroph.

Explanation:Anaerobic bacteria is a bacteria which breaks down its nutrients using carbon dioxide or in the absence of oxygen.

Chemoheterotroph is a bacteria which has the capacity to utilize nutrients in the form of chemicals and it can utilize organic nutrients also.

ANAEROBIC CHEMOHETEROTROPHS ARE BACTERIA WHICH FEEDS ON BOTH INORGANIC AND ORGANIC NUTRIENTS IN THE ABSENCE OF OXYGEN OR THE PRESENCE OF CARBON DIOXIDE.