SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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primary succession
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secondary succession
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biome succession
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None of the above
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Detailed explanation-1: -The first stage of succession involves pioneer species. In primary succession, pioneer plants are those that can grow without soil, such as lichens. Lichens begin breaking down a rock. Seasonal cycles of freezing and thawing form cracks in the rock.
Detailed explanation-2: -Primary succession always starts with a pioneer species. This is the species that first lives in the habitat. If life is to begin on barren rock, which is typical of new land, the pioneer species would be an organism such as a lichen (Figure below).
Detailed explanation-3: -Primary succession begins when no plant life is present on the landscape, such as after a lava flow or glacial retreat. Over centuries, soil forms and deepens and successive communities of plants grow.
Detailed explanation-4: -Primary succession is a type of succession that occurs on a surface where no ecosystem existed before. Primary succession can occur on rocks, cliffs, and sand dunes.