food chain

as in hierarchy
a series of types of living things in which each one uses the next lower member of the series as a source of food Sharks eat fish that are lower in the food chain. animals that are at the top of the food chain

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“Food chain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/food%20chain. Accessed 6 Feb. 2023.

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