The term for similarity in organ structure seen in great diversity is
Or
The similarity of bone structure in the forelimbs of many vertebrates is an example on

Options

A. Adaptive radiation
B. Convergent evolution
C. Analogy
D. Homology

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the similarity in organ structures despite a great diversity of organisms. It specifically mentions the similarity of bone structures in the forelimbs of many vertebrates.

2. **Identifying Key Terms**: The key terms in the question are "similarity in organ structure," "great diversity," and "forelimbs of many vertebrates."

3. **Exploring Options**:
- **Adaptive Radiation**: This refers to the process where organisms diversify rapidly into a variety of forms to adapt to different environments. This does not specifically refer to structural similarities.
- **Convergent Evolution**: This describes different species evolving similar traits independently, often due to similar environmental pressures. However, it does not imply a common ancestry.
- **Analogous Organs**: These are organs that serve similar functions but do not share a common evolutionary origin. This is more about function than structure.
- **Homologous Organs**: These are organs that have a similar structure and origin but may serve different functions in different species. This is the key concept that aligns with the question.

4. **Conclusion**: The similarity in bone structure in the forelimbs of many vertebrates is an example of homologous organs. Therefore, the correct answer to the question is "homologous organs."

5. **Final Answer**: The term for similarity in organ structure seen in great diversity is **homologous organs**.

---