Question

how do heterotrophs depend upon autographs for their food?

Answer 1

Heterotroph depend on autotroph for nutrition. The auto. make their food from sunlight and Co2 and thus get nutrition then hetero. consume it and get 10% nutrients from it. And then secondary consumer ate it and then this make a chain..

Answer 2

because all heterotrophs feed on meat or palnt products  which come from autotrophs directly or indirectly....................