Which of the two parts in cockroach are fundamentally similar in structure?
(a) Anal styles and labrum
(b) Wings and anal cerci
(c) Maxillae and legs
(d) Mandibles and antennae

Options

A. Anal styles and labrum
B. Wings and anal cerci
C. Maxillae and legs
D. Mandibles and antennae

Answer

To solve the question of which two parts in a cockroach are fundamentally similar in structure, we will analyze each option provided:

1. **Understanding the Structures**:
- **Anal Styles and Labrum**: The anal styles are appendages found near the anus, while the labrum is a mouthpart. They serve different functions and are not structurally similar.
- **Wings and Anal Cerci**: Wings are used for flight and are made of chitin, while anal cerci are sensory appendages. They differ in both function and structure.
- **Maxillae and Legs**: Maxillae are mouthparts that assist in feeding and are made up of three parts: protopodite, endopodite, and exopodite. Legs are locomotory appendages that consist of five parts: coxa, trochanter, femur, tibia, and tarsus. Both structures are appendages and share a similar segmented structure.
- **Mandibles and Antennae**: Mandibles are jaw-like structures used for feeding, while antennae are sensory organs. They differ significantly in both function and structure.

2. **Identifying Similar Structures**:
- After analyzing the options, we find that **maxillae and legs** share a similar segmented structure, making them fundamentally similar in structure.

3. **Conclusion**:
- Therefore, the correct answer is **(c) Maxillae and legs**.