Which of the following statements is incorrect?

Options

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

Answer

To determine which statement is incorrect, we need to analyze the definitions of homologous and analogous structures and evaluate the given options based on these definitions.

### Step-by-Step Solution:

1. **Understand Homologous Structures**:
- Homologous structures are organs that have a similar structure and origin but may serve different functions.
- Example: The forelimbs of mammals (like humans, bats, and whales) have similar bone structures but serve different purposes.

2. **Understand Analogous Structures**:
- Analogous structures are organs that have a similar function but differ in structure and origin.
- Example: The wings of birds and insects serve the same function (flying) but have different structures and origins.

3. **Evaluate the Statements**:
- **Option 1**: "Wings of insects and bats are homologous."
- This statement is incorrect because the wings of bats (which are homologous to mammalian forelimbs) and the wings of insects (which are not homologous to mammalian structures) are not similar in structure or origin.

- **Option 2**: "Wings of insects and bats are analogous."
- This statement is correct because both wings serve the function of flight but have different structures.

- **Option 3**: "Wings of bats and birds are homologous."
- This statement is correct as both wings have similar structures and origins, even though they serve the function of flying.

- **Option 4**: "Wings of insects and birds are homologous."
- This statement is also correct because while birds have wings that are homologous to other vertebrate limbs, insect wings are analogous to bird wings.

4. **Conclusion**:
- The only incorrect statement is **Option 1**: "Wings of insects and bats are homologous."

### Final Answer:
The incorrect statement is **Option 1**: "Wings of insects and bats are homologous."

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