A producer can make their own food, consumers are not able to. Consumers hunt and eat plants, fungi, or other animals.
herbivore: only eats plants (flowers, wood, nuts or grass)
carnivore: eats meat
omnivore: eats both plants and meat
detritivore: eats dead organic material, esp detritus (dead organisms, plant waste, fecal material)
decomposer: usually a fungus; one that breaks down dead or decaying organisms. Carries out decomposition.