In a pond ecosystem, benthos means: (a) Zooplanktons on water surface (b) Large fishes eating small ones (c) Primary consumes in the bottom of a pond (d) All phytoplankton’s

In a pond ecosystem, benthos means: (a) Zooplanktons on water surface (b) Large fishes eating small ones (c) Primary consumes in the bottom of a pond (d) All phytoplankton’s
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