What is a Self feeding organism?

A self-feeding organism, or autotroph, is an organism that produces its own food using inorganic substances. This process typically involves photosynthesis, where plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. Alternatively, some autotrophs, like certain bacteria, utilize chemosynthesis, deriving energy from chemical reactions involving inorganic molecules. Unlike heterotrophs, which rely on consuming other organisms for energy, autotrophs are capable of sustaining themselves through their own metabolic processes.