+A food chain illustrates the pathway of [Energy](/wiki/energy) flow through an ecosystem, linking organisms by who eats whom. It typically begins with [Producers](/wiki/producers) converting light or chemical energy, then flows upward through various [Consumers](/wiki/consumers), revealing the foundational connections that sustain life.
+## See also
+- [Ecosystem](/wiki/ecosystem)
+- [Trophic Levels](/wiki/trophic_levels)
+- [Predation](/wiki/predation)