Multiple Choice
In the context of primary succession, what role do mosses play in the environment?
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48. Ecology
Introduction to Ecology
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Why does secondary succession occur much quicker than primary succession?
A
Secondary succession involves the colonization of bare rock.
B
Secondary succession requires the formation of new soil.
C
Secondary succession begins with the establishment of pioneer species.
D
Secondary succession starts with existing soil and organic matter.
Verified step by step guidance1
Understand the concept of succession: Succession is the process by which ecosystems change and develop over time. There are two types: primary and secondary succession.
Define primary succession: Primary succession occurs in lifeless areas where there is no soil, such as after a volcanic eruption or glacier retreat. It begins with the colonization of bare rock by pioneer species like lichens and mosses, which help in soil formation.
Define secondary succession: Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact, such as after a forest fire, flood, or human activities like farming.
Compare the starting conditions: Secondary succession starts with existing soil and organic matter, which allows for quicker colonization by plants and animals compared to primary succession, where soil must first be created.
Explain the speed of succession: Since secondary succession begins with soil already present, it allows for faster recovery and establishment of plant and animal communities, making it quicker than primary succession.
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