Which one is incorrect.

Options

A. Wings of insects and birds are analogous
B. Wings of bat and birds are homologous
C. wings of insects and bat are analogous
D. Wings of insects and birds are homologous.

Answer

To determine which statement is incorrect regarding the classification of wings in different organisms, we need to analyze each option based on the definitions of homologous and analogous structures.

### Step-by-Step Solution:

1. **Understand the Definitions**:
- **Homologous Structures**: These are structures that are similar in form or structure but may serve different functions. They indicate a common ancestry.
- **Analogous Structures**: These are structures that are different in form or structure but serve similar functions. They do not indicate a common ancestry.

2. **Analyze the Options**:
- **Option 1**: Wings of insects and birds are analogous.
- **Analysis**: This is correct because they have different structures (insect wings vs. bird wings) but both serve the function of flying.

- **Option 2**: Wings of bats and birds are homologous.
- **Analysis**: This is also correct because bats and birds have similar wing structures (both have bones that are arranged similarly) but they serve different functions (bats are mammals, birds are avians).

- **Option 3**: Wings of insects and bats are analogous.
- **Analysis**: This is correct as well. Insects and bats have different wing structures but both wings allow for flight.

- **Option 4**: Wings of insects and birds are homologous.
- **Analysis**: This is incorrect. Insects and birds have very different wing structures, which means they cannot be classified as homologous. They perform similar functions (flying) but are not similar in structure, thus they are analogous.

3. **Conclusion**:
- The incorrect statement is: **Wings of insects and birds are homologous.**

### Final Answer:
The incorrect option is: **Wings of insects and birds are homologous.**