Trick for pyramid of number


◇ Pyramid of numbers represents the total number of individuals of different species (population) at each trophic level.

◇ Depending upon the size, the pyramid of numbers may not always be upright, and may even be completely in verted.

◇ It is very difficult to count all the organisms in a pyramid of numbers and so the pyramid of number does not completely define the trophic structure for an ecosystem.