Answer;
primary ecological succession
A glacier retreats exposing bare rock and allowing communities of organisms such as moss and lichens to move in. This is an example of primary ecological succession.
Explanation;
- Primary succession is a type of succession that occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine.
- Primary succession occurs in lifeless area; that is regions in which soil is incapable of sustaining life.
- The first organisms to appear in areas of primary succession are often mosses or lichens, often known as pioneer species because they are the first species present.
