1. what is the difference between food chain and food web?
2. describe food chain and food web.
3. what role does a producer play in a food chain and food web?
4. what role does a decomposer play in a food chain and food web?

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 

answer; projective;