When more than one adaptive radiations appeared to have occurred in an isolated geographical area, it is called.

Options

A. Divergent evolution
B. Convergent evolution
C. Anthropogenic evloution
D. Saltation

Answer

To answer the question "When more than one adaptive radiations appeared to have occurred in an isolated geographical area, it is called," we need to analyze the options provided and understand the concepts involved.

### Step-by-Step Solution:

1. **Understanding Adaptive Radiation**:
- Adaptive radiation is an evolutionary process where organisms diversify rapidly from an ancestral species into a wide variety of forms to adapt to different environments.
- This typically occurs when species colonize new habitats or when ecological niches become available.

2. **Identifying the Key Terms**:
- The question mentions "more than one adaptive radiation" occurring in an isolated geographical area. This suggests that multiple species have evolved adaptations in response to similar environmental pressures.

3. **Analyzing the Options**:
- **Divergent Evolution**: This refers to the process where two or more related species become more dissimilar over time, often due to different environmental pressures.
- **Convergent Evolution**: This occurs when unrelated species evolve similar traits or adaptations in response to similar environmental challenges, despite having different ancestral origins.
- **Anthropogenic Evolution**: This term relates to changes in species due to human activities, which is not relevant to the question.
- **Saltation**: This refers to sudden large mutations leading to significant evolutionary changes, which does not describe the process of multiple adaptive radiations.

4. **Choosing the Correct Answer**:
- Since the question describes a scenario where multiple adaptive radiations occur in an isolated area, leading to similar adaptations among different species, the correct term is **Convergent Evolution**. This is because it encapsulates the idea of different species evolving similar traits in response to similar environmental pressures.

5. **Conclusion**:
- Therefore, the correct answer to the question is **Convergent Evolution**.