Use the words and/or phrases from the word bank to complete the paragraph below. each word is used once. word bank balance herbivores photosynthesis chemical energy ecosystem trophic levels maintaining photosynthesis is the ultimate source of blank 1 energy in almost every blank 2 . the blank 3 from blank 4 flows through all major producing and feeding groups: producers, blank 5 , carnivores, scavengers, and decomposers. each of these groups, known as blank 6 , plays an important role in blank 7 the blank 8 of an ecosystem