I think the answer should be:<span>D) Small Fish and other Aquatic Species
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In food pyramid, the biomass will be much lower in the higher level. In general, every level will have lower of mass/energy compared to the level below. Then, the greatest biomass should be found in the producer class. High-level consumer like bird or mammals should have the lowest mass.
But it was inverted in aquatic, producer become the lowest mass so phytoplankton and zooplankton must be lowest. You should be able to exclude option A and C so it is either option B or D. Since B has zooplankton, I prefer to choose D
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What ways do organisms interact?-competition, predation, cooperation, symbiosis
-Competition: between same and different kinds of organisms, competes for available resources (food, light)
-Predation: between different kinds of organisms, hunt and kills each other in order to supply their energy (shelter)
-Cooperation: between same organisms, lives together and helps each other out (mates)
-Symbiosis: between different kinds or organisms, lives in close association with another kin of organism (space/territory)
