An energy pyramid is a graphical model of energy flow in a community. The different levels represent different groups of organisms that compose a food chain. An energy pyramid’s shape shows how the amount of useful energy that enters each level. Chemical energy, in the form of food, decreases because some is used by the organisms in each level. The source of the chemical energy is the producers. Producers rearrange carbon dioxide and water in the presence of light to make through the process of ______.

Question

An energy pyramid is a graphical model of energy flow in a community. The different levels represent different groups of organisms that compose a food chain. An energy pyramid’s shape shows how the amount of useful energy that enters each level. Chemical energy, in the form of food, decreases because some is used by the organisms in each level. The source of the chemical energy is the producers. Producers rearrange carbon dioxide and water in the presence of light to make through the process of ______.

A oxygen; respirationoxygen; respiration
B sugars; respirationsugars; respiration
C sugars; photosynthesissugars; photosynthesis
D energy; photosynthesis

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