Solved by a verified expert:The second law of thermodynamics explains much, including why there are ecological pyramids. Use a food chain to explain how this law determines the relative amounts of biomass in the different trophic levels of an ecosystem. That means you must use the food chain you provide to help show the loss of energy from trophic level to tropic level. It is not enough to just list the organisms in the food chain. Make sure to use a food chain not already used by other students in the class.