It is expected that the typical biomass of primary producers in an ecosystem is higher than the biomass of secondary producers.
In a given ecosystem the biomass of primary producers is higher than the biomass of secondary producers because only a fraction of energy is available at each successive trophic level and therefore the production of biomass is lesser.
In conclusion, it is expected that the typical biomass of primary producers in an ecosystem is higher than the biomass of secondary producers.
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