How Do Organisms In A Community Interact With Each Other?

Clueless too

had this the same question today for homework

They interact through d food chain d plants which r d autotroph manufacture d food,d hetetrophes  which are d primary consumer feed on dem d plants and in turn derives oxygen for dem yl d plants derives carbondioxide from dem.the carnivores now feeds on d hetetrophs and wen dey die dey r acted upon by micro organisms that breaks dem down and tru this procees plant derives its nutrients