If the total amount of energy in the producer level of an ecosystem is 40,000 kilocalories, approximately how much energy is available for the primary consumers?

the answer is 4000 i got it right on my test.

the bedroo..

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.