What community has the highest biomass per unit of surface area?

a. Rocky intertidal
b. Estuary
c. Sandy beach
d. Deep ocean


ANS: B
The standing biomass per unit of surface area is the highest among any marine community. The high
productivity is due to the availability of nutrients, the high biodiversity, strong sunlight, and the
abundance of niches in the community. Information can be found in the section Examples of Marine
Communities.

Environmental & Atmospheric Sciences

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