Which type of organism makes its own food?

autotrophic

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.

Depending on your grade, the answer could be 'autotroph' or 'producer'.