Tools A B producer an organism that makes its own food through photosynthesis consumer a living thing that obtains its energy by eating other living things herbivore a consumer that eats only producers carnivore a consumer that eats only other animals omnivore a consumer that eats both plants and animals predator an animal that hunts other animals for food prey an animal hunted for food by another animal food web the overlapping food chains that link producers,consumers, and decomposers in an ecosystem food chain the path that energy takes through a community as 1 living thing eats another ecosystem an area in which living and nonliving things interact biome a major land ecosystem having a distinct combination of plants and animals decomposer a living thing that breaks down and feeds on the remains of dead things competition the struggle amoung organisms for available resources