Adaptive radiation refers to

Options

A. Power of adaptation in an individual to a variety of environments
B. Adaptations due to Geographical isolation
C. Evolution of different species from a common ancestor
D. Migration of members of a species to different gengraphical areas.

Answer

**Step-by-Step Solution:**

1. **Understanding Adaptive Radiation**:
- Adaptive radiation is a process in evolution where organisms diversify rapidly from an ancestral species into a wide variety of forms to adapt to different environments.

2. **Analyzing the Options**:
- **Option 1**: "Power of adaptation in an individual to a variety of the environment" - This option is incorrect because adaptive radiation refers to species, not individual adaptations.
- **Option 2**: "Adaptation due to geographical isolation" - This option is also incorrect. While geographical isolation can lead to speciation, adaptive radiation specifically involves diversification from a common ancestor.
- **Option 3**: "Evolution of different species from a common ancestor" - This option is correct as it captures the essence of adaptive radiation, where species evolve from a common ancestor and adapt to different environments.
- **Option 4**: "Migration of the members of a species to different geographical areas" - This option is incorrect as it does not specifically describe the process of adaptive radiation.

3. **Conclusion**:
- The correct answer is **Option 3**: "Evolution of different species from a common ancestor."