When the succession occurs in a barren area that was not previously inhabited by plant, like sand dunes, seafloor, volcano lava sediments, it is called

Options

A. Primary succession
B. Secondary succession
C. Allogenic
D. Ecological succession

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of succession that occurs in a barren area that has not been previously inhabited by plants, such as sand dunes, seafloors, or volcanic lava sediments.

2. **Identifying Types of Succession**: There are two main types of ecological succession: primary and secondary succession.
- **Primary Succession**: This occurs in lifeless areas where there is no soil or organic matter, and it begins with pioneer species that can survive in harsh conditions.
- **Secondary Succession**: This occurs in areas where a disturbance has destroyed an existing community but left the soil intact.

3. **Analyzing the Options**:
- **Primary Succession**: Fits the description as it occurs in barren areas with no previous life.
- **Secondary Succession**: Does not fit since it requires the presence of soil and some previous life.
- **Allogenic Succession**: Involves changes due to abiotic factors, not specifically about barren areas.
- **Ecological Succession**: A general term that encompasses both primary and secondary succession.

4. **Conclusion**: Based on the definitions, the correct answer is **Primary Succession** because it specifically refers to the process that occurs in barren areas without prior life.

**Final Answer**: Primary Succession

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