Multiple Choice
What is an adaptation for organisms living in the upper intertidal zone?
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48. Ecology
Introduction to Ecology
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Which of the following is an example of primary succession?
A
The recovery of a coral reef after a bleaching event
B
The reestablishment of a grassland after a flood
C
The regrowth of a forest after a wildfire
D
The colonization of a newly formed volcanic island by pioneer species
Verified step by step guidance1
Understand the concept of primary succession: Primary succession occurs in lifeless areas where there is no soil or initial vegetation, such as newly formed volcanic islands or areas left by retreating glaciers.
Identify the characteristics of primary succession: It involves the colonization of barren environments by pioneer species, which are the first organisms to inhabit the area. These species help create soil by breaking down rocks and accumulating organic material.
Differentiate between primary and secondary succession: Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact, such as after a wildfire or flood.
Analyze the given options: Consider which scenario involves the initial colonization of a lifeless area without soil. The recovery of a coral reef, reestablishment of a grassland, and regrowth of a forest all involve existing soil or substrate.
Conclude with the correct example: The colonization of a newly formed volcanic island by pioneer species is an example of primary succession, as it involves the initial establishment of life in a previously uninhabited area.
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