ECOLOGY
ORGANISMS AND THE ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A forest rebuilds after a forest fire
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New island is created from hot spot in the ocean
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A tornado completely destroyed a crop of corn.
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a glacier retreated exposing the bedrock.
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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.
Detailed explanation-2: -The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
Detailed explanation-3: -As glacial retreat exposes bare land surface, plants colonize and develop into changing “communities” that mature over decades and centuries. This process is called “primary plant succession”, and it has been studied here in Glacier Bay for 100 years – the longest-running study of its kind anywhere in the world.