In a seventh graders response explain how an energy limit the number of Tropic levels in a food chain or web explain in four sentences.

Answer 1

Energy limits the number of trophic levels in a food chain because each level loses a lot of energy as it goes up. When plants, the primary producers, make their food using sunlight, only about 10% of that energy gets passed on to the next level, which is the herbivores. Then, when herbivores are eaten by carnivores, again only about 10% of their energy is passed on. This loss of energy means there isn't enough left to support many levels, so most food chains and webs usually have only 3 to 5 levels.