How do autotrophs and heterotrophs benefit one another within an ecosystem

Autotrophs and Heterotrophs benefit each other by providing raw materials for various life processes ,directly or indirectly .

Explanation:

Autotrophs can prepare their own food by using sunlight .This  is not possible for Heterotrophs. Heterotrophs obtain their food from Autotrophs.Heterotrophs Feed on Plants and helps them in Pollination and Seed dispersal.Autotrophs Carry out photosynthesis and produce  oxygen which is taken up by heterotrophs for respiration. Heterotrophs in turn, give out Carbon dioxide which is used up by autotrophs.Heterotrophs like detrivores and decomposers obtain there food from decaying plant parts and thus break down the nutrient which is then made available to plants.