To show how many organisms are present at each level of a food chain,ecologists use a model called

Choose the correct pair of Trophic level - Dry weight $(kg\ m^{-2})$ based on the pyramid of biomass in a grassland ecosystem.

The pyramid of energy is always ..........

Choose the correct option for the given statements:
($T$ = True,$F$ = False)
$(A)$ Pyramid of energy is always upright.
$(B)$ Pyramid of number in a sea is generally inverted.
$(C)$ Pyramid of biomass in a sea is generally inverted.
$(D)$ In most ecosystems,the pyramid of number and energy are always inverted.

Which of the following organisms were not given any place in ecological pyramids?

The given figure represents a pyramid of energy. What can be inferred from it?