Upright pyramid:

Pyramid of energy is always upright Pyramid of numbers and biomass can be inverted.

At the producer level of an ecosystem, this pyramid has the highest number and biomass of organisms which declines at each trophic level in a food chain At the producer level of an ecosystem, this pyramid has the lowest number and biomass of organisms which rises at each increasing tropic level in a food chain.

Inverted pyramid:

Pyramid of numbers and biomass can be inverted.

At the producer level of an ecosystem, this pyramid has the lowest number and biomass of organisms which rises at each increasing tropic level in a food chain.