Final answer:
Creating a system with organisms that eat each other forms a food chain, and energy and matter flow from one organism to another in a linear fashion.
Step-by-step explanation:
Creating a system with organisms that eat each other is an example of a food chain or a food web. In a food chain, energy and matter flow from one organism to another in a linear fashion, starting with a producer that converts sunlight into food (such as plants), then the primary consumer (herbivores) eat the producer, followed by secondary, tertiary, and so on. For example, a system consisting of grass (producer), rabbit (primary consumer), snake (secondary consumer), and hawk (tertiary consumer) represents a food chain. The flow of energy occurs as each organism consumes the one before it, transferring energy from one level to the next.
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