What is a food web?

What is a food web?

• A. A cycle of energy that repeats
• B. A single linear chain
• C. A network of interconnected food chains representing energy flow in an ecosystem
• D. A group of producers

Answer: (C)

Understanding how energy moves through an ecosystem, a food web shows the network of who eats whom. Instead of just one path, a food web maps many feeding relationships at once, linking producers, herbivores, omnivores, carnivores, and decomposers. Energy starts with producers—organisms like plants that capture sunlight—and flows through the web along multiple pathways as different organisms eat and are eaten. Because energy is lost as heat at each transfer, the web becomes a branching, interconnected map rather than a simple line. The other descriptions aren’t right because energy doesn’t cycle back on itself in a closed loop, a single linear chain doesn’t capture the many connections, and producers alone aren’t the concept—it's the whole network of feeding relationships that matters.

Understanding how energy moves through an ecosystem, a food web shows the network of who eats whom. Instead of just one path, a food web maps many feeding relationships at once, linking producers, herbivores, omnivores, carnivores, and decomposers. Energy starts with producers—organisms like plants that capture sunlight—and flows through the web along multiple pathways as different organisms eat and are eaten. Because energy is lost as heat at each transfer, the web becomes a branching, interconnected map rather than a simple line. The other descriptions aren’t right because energy doesn’t cycle back on itself in a closed loop, a single linear chain doesn’t capture the many connections, and producers alone aren’t the concept—it's the whole network of feeding relationships that matters.