Organisms that can produce their own food and feed themselves are called self-feeders autotrophs heterotrophs

autotrophs

Explanation:

Autotrophs are the organisms which are capable of producing their own food by the process of photosynthesis. These includes plants, diatoms and some bacteria and some protist. The process of photosynthesis involves the carbon dioxide, water in the presence sunlight produces carbohydrates and oxygen.

compost can be added to topsoil as a:

pesticide