Which term describes an organism that produces its own food by converting inorganic substances into organic matter, thereby supplying both matter and energy to itself?

Recall the definition of a producer: Producers are organisms, such as plants, algae, and some bacteria, that use processes like photosynthesis or chemosynthesis to convert inorganic substances (e.g., carbon dioxide, water, sunlight, or chemical compounds) into organic matter (e.g., glucose).