Question

Which pyramids is always upright, can never be inverted?

• A. Pyramid of energy
• B. Pyramid of biomass
• C. Pyramid of number
• D. Pyramid of dry biomass

Answer 1

Answer: (A)

Pyramid of energy

Pyramid of energy is always upright because when energy flows from particular trophic level to next trophic level, some energy is always lost as heat at each step. So, the energy in subsequent trophic levels is always less than the energy in the previous level. Hence pyramid of energy is always upright and can never be inverted.

So, the correct answer is 'Pyramid of energy'.