Answer: at each trophic level of organisms It is an upright pyramid because producers are always more numerous in an ecosystem than other trophic levels. Charles Elton proposed the number pyramid in 1927. Charles emphasized the significant difference in the number of organisms involved in each level.
Explanation: Numbers pyramid Definition One of the three diagrammatic representations used in ecology to depict the ecosystem is a pyramid of numbers. This diagram depicts the total number of organisms at each level of the food chain.
Pyramid of Numbers Overview
Significant Ecological Pyramids:
Pyramid of Numbers Varieties:
The Ecological Pyramids' Importance: