Question

A glacier retreats, exposing bare rock and allowing communities of organisms to move in. this is an example of ____.​

Answer 1

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.