Respuesta :
Answer:
d. ecological succession.
Explanation:
- When over a period of time the species structure of the community changes this is termed as ecological succession.
- The succession can be of two types - primary and secondary.
- When a new community is established in an area which was previously not occupied is termed as primary succession and the organisms that inhabit these area are forms the pioneer organisms.
- Primary succession occurs on the bare rocks, sand surfaces, areas of lava flows etc.
- When the succession occurs in an area which was previously occupied but the community was replaced due to any ecological disturbance then the formation of new community after this is termed as secondary succession.
When a new or other community inhabits freshly formed or previously habituated places are called succession.
The correct option is:
Option d. ecological succession.
This can be explained as:
- Succession is of two types primary and secondary depending on the habitat.
- When a new community establishes in a region that was not occupied before is called primary succession. The organism inhabiting the area is called pioneer species.
- Algae and mosses are the pioneer species inhabiting the rocks and barren surfaces.
- When the previously occupied area undergoes habitation them it is called secondary succession.
Therefore, the establishment and restoration of new communities are called ecological succession.
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