During Ecological Succession,the Species Composition of a Plant Community Generally

Multiple Choice

During ecological succession,the species composition of a plant community generally

A) changes from a diverse community in which many plants are common to one in which a few species are numerically dominant.
B) remains stable as long as major environmental factors (climate,human interference) remain constant.
C) changes until forest is established and a single species remains.
D) changes gradually because each species responds differently to the changing environment.