Food Chains Depict Energy Flow in Ecosystems

Steps:

• Recall that a food chain models how energy transfers from one organism to another in an ecosystem.
• Identify key elements: it starts with producers (like plants) and moves to consumers and decomposers.
• Evaluate choices: look for the one emphasizing sequential energy passage, not just diets or levels.
• Select the option that matches the standard ecological definition of energy flow.

Why C is correct:

• A food chain is defined in ecology as a linear diagram illustrating energy transfer through trophic levels, where each organism consumes the previous one, following the 10% energy rule in transfers.

Why the others are wrong:

• A is incorrect because it focuses narrowly on one organism's feeding, ignoring the full chain sequence.
• B is incorrect as it vaguely describes a single diet without mentioning interconnected organisms or energy.
• D is incorrect since trophic levels are part of food webs or pyramids, not the chain's primary focus.

Final answer: C