Final answer:
False. The classification of autotroph or heterotroph is not based on the source of nitrogen, but rather the source of carbon an organism uses for metabolism and its energy source.
Step-by-step explanation:
False. Whether an organism is an autotroph or heterotroph does not depend on its source of nitrogen. The classification of autotroph or heterotroph is based on the source of carbon an organism uses for metabolism and its energy source. Autotrophs are organisms that convert inorganic carbon dioxide into organic carbon compounds, while heterotrophs rely on more complex organic carbon compounds as nutrients.