Food Chain | Microschool Dev

A food chain illustrates the linear sequence of who eats whom in an ecosystem, detailing the transfer of energy from one trophic level to the next. It typically begins with producers (like plants) that create their own food through photosynthesis, followed by primary consumers (herbivores) that eat producers, secondary consumers (carnivores or omnivores) that eat primary consumers, and tertiary consumers (top predators) at the apex. Each step represents a loss of energy, with only about 10% of the energy from one level being transferred to the next, a principle known as the '10% rule'. Understanding these chains is crucial for grasping ecosystem stability, the impact of species loss, and the flow of nutrients. Disruptions at any level, such as the removal of a predator or the introduction of an invasive species, can have cascading effects throughout the entire chain.