5. We have collected data on consumption efficiency, assimilation efficiency, net production efficiency, and ecological efficiency from three ecosystems. Energy Net production available in lower trophic levels Consumed energy (J) Assimilated energy (J) Net production energy (1) Terrestrial Ecosystem 1,000 250 120 50 Lake Ecosystem 1,000 650 450 190 Stream Ecosystem 400 260 100 40 a. Calculate the consumption efficiency, assimilation efficiency, net production efficiency, and ecological efficiency for each ecosystem. Give your answers as percentages. b. Based on these calculations, why do the two aquatic ecosystems have higher ecological efficiencies than the terrestrial ecosystem? c. Based on these calculations, why does the stream ecosystem have a lower ecological efficiency than the lake ecosystem?