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The greatest biomass of autotrophs in the oceans is that of
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- sea grasses and slime moulds
- free floating microalgae, cyanobacteria and nanoplankton
- benthic brown algae,coastal red algae and daphnids
- benthic diatoms and marine viruses
Correct Option: B
The greatest biomass of autotrophs in the oceans is that of free floating microalgae, cyanobacteria and nanoplankton.