The biomass pyramids for phytoplankton and trees in their respective environments are _______.

A biomass pyramid compares the total living material at each trophic level. In many aquatic environments, phytoplankton have a small standing biomass because they reproduce and are eaten quickly, so their biomass pyramid is inverted. Trees store a large amount of biomass, making the pyramid in a tree-based environment normal. Therefore, the two pyramids are opposite.

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