ECOLOGY
ECOSYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Where the first plants start to grow.
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Where larger trees and plants grow.
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Where the humus is in most abundance.
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Where the sand is only moistened by the splash of waves.
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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: -The first organisms appearing in the regions of primary succession are pioneer species (usually lichens or mosses). They are the first species present. They must be strong and hardy. The development of a new community is succession.
Detailed explanation-3: -Weathering allows hardy pioneer species to grow on the rocks. Decomposition of pioneer species provides organic material to make soil. Small annual plants are able to grow on the soil. As the soil layer grows plants such as trees are able to colonize the area.
Detailed explanation-4: -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.