Food Chains and Food Webs – Energy Flow in Ecosystems is a foundational ecology course that reveals how energy moves through the living world. From sunlit leaves to apex predators, every organism plays a role in the transfer and transformation of energy.

This lesson introduces the basic structure of food chains and expands into the complexity of food webs, helping learners visualize how life is interconnected. By understanding producers, consumers, and decomposers, you’ll gain insight into the balance and resilience of ecosystems—and why energy flow is key to their health and sustainability.