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Why are most food chains limited to three to five trophic levels? a. The higher the trophic level, the larger the organism; the larger the organism, the less likely it will be prey. b. The nutritional quality of existing biomass decreases with increasing trophic level. c. Most ecosystems have insufficient space to support the increased number of organisms that more trophic levels would require. d. There is insufficient energy to support more trophic levels.

User Gmoon
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Answer:

Most food chains are limited to three or five trophic levels because the energy available is only enough for those number of trophic levels: there is insufficient energy to go round more trophic level.

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User Tbrlpld
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