ECOLOGY
ECOLOGICAL SUCCESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Algae on the school buildings
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Weeds by the entryway
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Shell-shaped fossils embedded in rocks
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Abundance of dandelions on playground
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Detailed explanation-1: -Answer and Explanation: Primary succession would not occur in a clear-cut forest.
Detailed explanation-2: -The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.
Detailed explanation-3: -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.
Detailed explanation-4: -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. As lava flows into the ocean, new rock is formed.