Through succession, a field becomes a forest as hardwood trees become the dominant species in the ecosystem. Grasses are no longer
able to compete as well in the forested environment.
grasses
Lock
shrubs → softwood trees hardwood trees
Which is most likely the limiting factor that inhibits the growth of the
grasses in the forest?
A. low levels of humidity near
the forest floor
thin layers of topsoil on the forest floor
slow rates of decomposition on the forest floor
low levels of sunlight reaching the forest floor