consumer (kən-s 'mər) Pronunciation Key
A heterotrophic organism that feeds on other organisms in a food chain. ◇ Herbivores that feed on green plants and detritivores that feed on decaying matter are called primary consumers. Carnivores that feed on herbivores or detritivores are called secondary consumers, while those that feed on other carnivores are called tertiary consumers. Compare producer. |