Which organelle breaks down food into molecules the cell can use for energy

answer: 45

explanationyou have to add as well to be it could be

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

voluntary muscles are controlled by the cerebellum.