Wings of butterfly and wings of birds are examples of

Options

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

Answer

To determine the classification of the wings of butterflies and birds, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Function of the Wings**:
- Both butterfly wings and bird wings serve a similar primary function, which is to enable flight.

2. **Analyze the Structure of the Wings**:
- Despite having the same function, the structure of butterfly wings and bird wings is quite different. Butterfly wings are made of chitin and are membranous, while bird wings are composed of feathers and are made of bone.

3. **Identify the Type of Organs**:
- Based on the differences in structure and the similarity in function, we can classify these wings.
- Organs that perform similar functions but have different structures are known as **analogous organs**.

4. **Differentiate from Other Types of Organs**:
- **Homologous organs** are those that have a similar structure and embryonic origin but may serve different functions (e.g., the forelimbs of mammals).
- **Vestigial organs** are remnants of organs that no longer serve a significant function (e.g., human appendix).
- **Metabolistic organs** is not a standard term used in this context.

5. **Conclusion**:
- Therefore, the wings of butterflies and birds are classified as **analogous organs** because they share a common function (flight) but have dissimilar structures.

### Final Answer:
The wings of butterflies and wings of birds are examples of **analogous organs**.