Multiple Choice
Which of the following is an example of a disaster typically resulting in primary succession?
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48. Ecology
Introduction to Ecology
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Which of the following best describes the difference between primary and secondary succession?
A
Primary succession involves the reestablishment of a community, while secondary succession involves the initial establishment of a community.
B
Primary succession is faster than secondary succession because it starts with existing soil.
C
Primary succession occurs on newly exposed surfaces without soil, while secondary succession occurs in areas where a disturbance has destroyed a community but left the soil intact.
D
Primary succession occurs in aquatic environments, while secondary succession occurs in terrestrial environments.
Verified step by step guidance1
Understand the concept of ecological succession, which is the process by which ecosystems change and develop over time.
Identify the two types of succession: primary and secondary succession.
Primary succession occurs in lifeless areas where there is no soil, such as after a volcanic eruption or on a newly formed sand dune. It involves the gradual establishment of a biological community.
Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact, such as after a forest fire or hurricane.
Compare the two: Primary succession starts from bare rock or sand and takes longer because soil needs to be formed, while secondary succession is faster as it starts with existing soil and often some remaining organisms.
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