Primary Succession Occurs When a Community Develops ________ While Secondary

Multiple Choice

Primary succession occurs when a community develops ________ while secondary succession occurs when one ________.

A) into a climax community;species replaces another
B) and replaces another;ecosystem becomes stable
C) on unoccupied ground;biological community replaces another
D) and then fails;niche changes
E) intraspecific competition;experiences interspecific competition