Ecological succession refers to
- The movement of organisms from one habitat to another
- The competition among species for limited resources
- The process of natural selection in a population
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The gradual and predictable change in a community over time
The correct answer is: D
Explanation
Ecological succession can be primary or secondary. Primary succession occurs in areas where no previous community existed, such as on bare rock or after a volcanic eruption. Secondary succession occurs in areas where a previous community has been disturbed, such as after a forest fire or human disturbance. Throughout the succession process, the community gradually changes in terms of species composition, population sizes, and community interactions, leading to a more stable and mature ecosystem.
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