Which of the following statement/s regarding ecological pyramid is/are wrong?
I. In most ecosystem, all the pyramids, of number, of energy and biomass are upright.
II. Each trophic level has a certain mass of living material at a particular time called as the standing crop.
III. The pyramid of biomass in sea is generally upright because the biomass of fishes far lower that of phytoplankton.
IV. Pyramid of energy is always upright, can never be inverted.
V. Energy at a lower trophic level is always less than at a higher level.
A. II only
B. II and IV only
C. III and V only
D. I, II and IV only
