Final answer:
An energy pyramid is the representation that shows how energy is lost in a food chain as it moves through the trophic levels.
Step-by-step explanation:
Another way to represent a food chain is through an energy pyramid, which shows how energy is lost as you move through the levels. A food chain diagram represents a single pathway by which energy flows through organisms in an ecosystem, but this is a simplification of actual complex feeding relationships.
Every time energy is transferred from one organism to another, there is a loss of energy. The energy pyramid demonstrates this concept, where each level represents a trophic level in an ecosystem such as producers, primary consumers, higher-level consumers, and finally decomposers.
Typically, only about 10% of the energy from one trophic level is passed on to the next level, with the rest being used for metabolic processes or released into the environment as heat.