Concept: The pyramid of biomass represents the total biomass at each trophic level in an ecosystem.Explanation:
In most ecosystems (grassland, forest), the pyramid of biomass is upright — producers have the highest biomass.
In aquatic/marine ecosystems (Sea), the pyramid of biomass is inverted because the producers (phytoplankton) have a very small biomass compared to the consumers (zooplankton, fish).
Phytoplankton reproduce rapidly, so even though their standing crop (biomass at any given time) is low, they support a larger biomass of consumers.
Answer: The pyramid of biomass in Sea (aquatic ecosystems) is generally inverted.