FOCUS QUESTION

How does energy flow through a food web?

The map breaks this topic into its core concepts, connected by labeled relationships. Each link is written so it can be read as a complete statement — not just an unlabeled line between boxes.

Concepts and relationships

  • Food Web begins with Producers.
  • Sun powers Producers.
  • Producers eaten by Primary Consumers.
  • Primary Consumers eaten by Secondary Consumers.
  • Secondary Consumers eaten by Apex Predators.
  • Apex Predators broken down by Decomposers.
  • Decomposers return nutrients to Producers.

How to read this map

Start at the Sun and follow the arrows up the feeding levels, reading each link, then see how decomposers return nutrients to producers.

Learning objectives

  • Distinguish producers, consumers and decomposers.
  • Trace energy from the Sun through trophic levels.
  • Explain the role of decomposers.
  • Predict effects of removing one organism.
Review standard: Trophic roles were checked against standard secondary-school biology descriptions. Sources: OpenStax Biology 2e — Energy Flow through Ecosystems.