Final answer:
A food chain describes the flow of energy and consumption in an ecosystem. When an organism in the middle of the food chain is lost, it can have significant implications on other organisms in the chain.
Explanation:
A food chain is the sequence of consumption and energy transfer through an ecosystem. It consists of different trophic levels where each organism occupies a specific position. When an organism in the middle of the food chain is lost, it can disrupt the flow of energy and nutrients in the ecosystem, affecting organisms both before and after it in the chain.
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