Describe DDT and summarize the history of the use and banning of DDT, including actions taken by the US government. State the major reasons for spraying DDT and for banning it. State three or more ways science has played a role in the controversy.

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 

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.