NEET BIOLOGY

Detailed explanation-1: -Primary succession follows the formation of a totally new habitat, such as when a lava flow or a receding glacier creates or reveals new land which is devoid of soil or vegetation. Organisms from nearby habitats begin to build soil by breaking down exposed bedrock, and the wind brings in additional soil materials.

Detailed explanation-2: -Primary succession and pioneer species Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii.

Detailed explanation-3: -Primary succession happens when a new patch of land is created or exposed for the first time. This can happen, for example, when lava cools and creates new rocks, or when a glacier retreats and exposes rocks without any soil. During primary succession, organisms must start from scratch.

Detailed explanation-4: -Primary succession occurs where no ecosystem has existed before. It is a very slow process because it begins on bare rock. A glacier that retreats leaves behind no soil. Lava from a volcanic eruption hardens into bare rock.

Detailed explanation-5: -Primary Succession Over time, lichens convert, or fix, atmospheric nitrogen into useful forms for other organisms, break down rock, and add organic material to form soil. Certain grasses are also pioneer species.