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1. A graphic representation of the structure of a food chain, depicted as a pyramid having a broad base formed by producers and tapering to a point formed by end consumers. Between successive levels, total biomass decreases as energy is lost from the system.
2. A diagram representing the optimal number of servings to be eaten each day from each of the basic food groups. Also called diet pyramid.
the successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
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|Noun||1.||food pyramid - (ecology) a hierarchy of food chains with the principal predator at the top; each level preys on the level below|
bionomics, environmental science, ecology - the branch of biology concerned with the relations between organisms and their environment
organic phenomenon - (biology) a natural phenomenon involving living plants and animals