Identify the incorrect statement from the following:
The pyramid of energy is mostly upright, but sometimes it may be inverted.
Pyramids of numbers and biomass may be either upright or inverted.
The pyramid of biomass in the sea is generally inverted as the biomass of fish far exceeds that of phytoplankton.
Food chains are generally short with few trophic levels, as only $10\%$ of the energy is transferred to each trophic level from the lower trophic level.
