EASY
Earn 100

Select the set of correct statements:

a. In an aquatic ecosystem, the grazing food chain is a major conduit for energy flow.
b. Detritus food chain may be connected with the grazing food chain at some levels.
c. Each trophic level has a certain mass of living material at a particular time called standing state.
d. Species composition and stratification are two main structural features of an ecosystem.

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