Energy Flow Through Ecosystems Practice Test

In a savanna, grasses store 40,000 kJ of new biomass energy. Termites that feed on grasses store 4,800 kJ, and aardvarks that eat termites store 240 kJ. Which conclusion is best supported about energy transfer efficiency between the two consumer levels compared with producer-to-consumer transfer?

In a coastal ecosystem, primary producers store 30,000 kJ as new biomass. Two pathways occur: grazers store 3,000 kJ, and detritivores store 6,000 kJ from dead organic matter. Predators that eat grazers store 240 kJ, and predators that eat detritivores store 360 kJ. Which conclusion is best supported about energy flow through these pathways?