The process by which one type of community replaces another in an area over a period of time is called?

The process by which one type of community replaces another in an area over a period of time is called?

• A. Succession
• B. Primary Succession
• C. Secondary Succession
• D. Pioneer Species

Answer: (A)

Succession is the gradual change in species composition of a community over time, as the environment changes and different organisms become established. The process described—one type of community replacing another as time passes—fits this idea exactly, because it’s about how communities transform from early stages to later ones. Primary and secondary succession are specific kinds of this broader process: primary succession starts on bare, lifeless land with no soil (like newly exposed volcanic rock), while secondary succession begins after disturbance where soil remains (such as after a fire or clear-cutting). Pioneer species are the first organisms to colonize and kick off the process, but they are not the process itself.

Succession is the gradual change in species composition of a community over time, as the environment changes and different organisms become established. The process described—one type of community replacing another as time passes—fits this idea exactly, because it’s about how communities transform from early stages to later ones. Primary and secondary succession are specific kinds of this broader process: primary succession starts on bare, lifeless land with no soil (like newly exposed volcanic rock), while secondary succession begins after disturbance where soil remains (such as after a fire or clear-cutting). Pioneer species are the first organisms to colonize and kick off the process, but they are not the process itself.