The diagram shows a numbers pyramid for a forest community. Imagine that there is only one producer, a tree. This seems to contr
adict the concept of the typical food pyramid. All but one statement explains how this model is also correct. A) Chemical energy is transferred up from autotrophs to heterotrophs. B) The autotroph still has the greatest biomass and each level above is less. C) When producers are large, like forest trees, they can support numerous small primary consumers like insects and birds. D) The autotrophs would typically have the highest number of organisms with each level above it containing roughly 90% less.
generally considered to have originated in the late nineteenth century as a reaction to the abuses of big business and the problems that plagued the lower socio-economic classes of that era.
