Q.

Which are the largest fixator of solar energy -

A. Bacteria
B. Protozoa
C. Fungi
D. Green plants
Answer» D. Green plants
Explanation: Ecological productivity refers to the primary fixation of solar energy by plants and the subsequent use of that fixed energy by plant-eating herbivores, animal-eating carnivores, and the detritivores that feed upon dead biomass. Ecologists refer to the productivity of green plants as primary productivity.
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