Refer to the Figure

Multiple Choice

Refer to the figure. Compare the forest with the grassland ecosystem in the diagram.What is the most likely reason the grassland ecosystem has comparatively higher energy flow and biomass, particularly at the second (primary consumer) level?

A) Trophic efficiency of the forest is lower because of the large proportion of wood in the forest.
B) The large proportion of wood in the forest means less energy is available to higher levels, but trophic efficiency is not affected.
C) Trophic efficiency of the forest is higher because of the large proportion of wood in the forest.
D) Grasslands have smaller plants and thus are less able to transfer energy efficiently.
E) Forest trees process energy faster, but they have to develop wood, so they cannot produce biomass as quickly.