What process can autotrophs perform that heterotrophs can not?
Autotrophs, which are plants and such, use a process called Photosynthesis to gain energy. Photosynthesis is a two-phase anabolic pathway in which the Sun's light energy is converted to chemical energy for use by the cell.
Autotrophs do. Autotrophs are organisms that can produce their own food using raw materials and a source of energy obtained from the environment. Some autotrophs are photosynthetic while some are chemosynthetic. Heterotrophs cannot synthesize their own food and depend on autotrophs, directly or indirectly, for nutrition.