Final answer:
The statement is true; a food chain shows a single pathway for energy flow in an ecosystem, but it is a simplified model compared to the more complex food web, which represents multiple pathways.
Step-by-step explanation:
The statement that a good food chain shows one possible path along which energy can move through an ecosystem is true. A food chain diagram represents a single pathway by which energy flows through organisms in an ecosystem. However, it is a simplified model and does not account for the complex interrelationships found in nature, where most organisms have multiple food sources and provide energy to several different predators. In contrast, a food web diagram shows multiple interacting pathways, representing a more holistic view of how energy and matter flow through an ecosystem.
It is important to note that while food chains are linear and easier to understand, they are not wholly representative of an ecosystem's dynamics. In nature, food webs are more accurate since they illustrate the interconnectedness of organisms via many intersecting food chains, showing that an organism can be part of multiple food chains at the same time.
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