Food Web

(n.) The food chains and their interrelationships make up a food web. Food webs visually display the trophic levels within an ecosystem: Decomposers such as bacteria and fungi are the bottom trophic level; plants or microbial primary producers represent the bottom trophic level, followed by the consumers. Primary consumers are herbivores, or animals that eat the plants. The secondary and tertiary consumers (carnivores) make up the next two trophic levels.