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Q12: An estuary is important because it is
Q24: The euphotic zone would include such animals
Q26: Which term refers to the ability of
Q31: What is the actual average replacement-level fertility
Q45: Complex chemical pollutants that living organisms break
Q56: Which statement is a general description of
Q69: What is the name of the topsoil
Q77: Coral reefs involve a _ relationship between
Q77: Survival of the fittest means survival of
Q90: In temperate lakes,there is thermal stratification and