Ecological succession is _______and _________change in species compostion.

Options

A. Orderly and sequential
B. predictable and orderly
C. Gradual and unsequential
D. Sequential and disorderly

Answer

**Step-by-Step Solution:**

1. **Understanding Ecological Succession**: Ecological succession refers to the process through which ecosystems change and develop over time. It involves a series of stages where different species colonize an area, leading to changes in species composition.

2. **Characteristics of Ecological Succession**:
- It is a **gradual** process, meaning it occurs slowly over time rather than suddenly.
- It is also **predictable**, as certain species are likely to succeed others in a given environment based on ecological principles.

3. **Analyzing the Options**:
- **Option 1: Orderly and Sequential**: This suggests a structured process, which aligns with the idea of succession.
- **Option 2: Predictable and Orderly**: This option emphasizes the predictability of the process and its orderly nature, which is accurate.
- **Option 3: Gradual and Unsequential**: While it mentions 'gradual', 'unsequential' contradicts the nature of succession.
- **Option 4: Sequential and Disorderly**: This option is incorrect as it implies chaos in the process.

4. **Choosing the Correct Option**: Based on the understanding that ecological succession is a gradual and predictable process, the best fit among the options is **Option 2: Predictable and Orderly**.

5. **Final Answer**: Ecological succession is **predictable** and **orderly** change in species composition.

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