Organs which have similar origin and developmental plan, but different functions are called

Options

A. Vestigial organs
B. Analogous organs
C. Homologous organs
D. Physiological organs

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the classification of organs that share a similar origin and developmental plan but serve different functions.

2. **Analyzing the Options**:
- **Vestigial Organs**: These are remnants of organs that were functional in ancestors but are reduced or non-functional in modern organisms. They do not fit the criteria of having a similar origin and developmental plan for current functional purposes.
- **Analogous Organs**: These organs perform similar functions but have different structures and origins. This means they do not share a similar origin or developmental plan, so they are not the answer.
- **Homologous Organs**: These organs have a similar structure and origin, indicating that they come from a common ancestor. However, they may serve different functions in different species. This fits the criteria given in the question.
- **Physiological Organs**: This term is not commonly used in biological classification and does not relate to the question.

3. **Conclusion**: Based on the analysis, the correct answer is **homologous organs**. They have similar origins and developmental plans but perform different functions.

**Final Answer**: Homologous organs.

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