1) produce their own food e.g. plants etc
2) only eat fruits and veg e.g. giraffes etc
3) only eats meat e.g. wolves etc
4)eat vegetables, fruits and meat e.g. humans etc
5) an animal that lives off of eating detritus (waste, debris) e.g. earthworms, maggots etc
6) an organism that breaks down organic material e.g. bacteria, fungi etc.