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a hierarchical series of organisms each dependent on the next as a source of food
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| plankton consisting of microscopic plants |
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| a system of interlocking and interdependent food chains. |
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plankton consisting of small animals and the immature stages of larger animals
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each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy
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| graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem |
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the total mass of organisms in a given area or volume
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