Identify the correct statements.  

A) The detritus food chain begins with dead organic matter.

B) In an aquatic ecosystem, the grazing food chain is the major conduit for energy flow.

C) Each trophic level has a certain mass of living material at a particular time called as the standing crop.

D) Organisms at each trophic level depend on those at the higher trophic level for their energy demands.

E) The amount of energy increases at successive trophic levels.