ECOLOGY
ECOSYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A new island formed by the eruption of an undersea volcano
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A clearing in a forest left by cutting down the trees
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An abandon junkyard
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None of the above
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Detailed explanation-1: -Primary succession occurs only in a bare rock or a newly formed water body.
Detailed explanation-2: -Primary succession occurs in an area that has not been previously occupied by a community. Places where primary succession occurs include newly exposed rock areas, sand dunes, and lava flows. Simple species that can tolerate the often-harsh environment become established first.
Detailed explanation-3: -Primary succession occurs when a land area is formed. This may occur following a volcanic eruption, when new sand is deposited on a beach, or when a glacier retreats.
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.
Detailed explanation-5: -Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient-rich soils. The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment.