In engineering, the first step is to define the problem. Give an example of what you think an engineering problem dealing with the environment, plants, or animals might look like.

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 

c is the correct answer hope this !

i believe it would be c: tons.