Which of the following is absent in the segment of cockroach's leg

Options

A. Coxa
B. Tibia
C. Femur
D. fibula

Answer

To determine which structure is absent in the segment of a cockroach's leg, we will analyze the options provided: coxa, tibia, femur, and fibula.

### Step-by-Step Solution:

1. **Understanding the Structure of Cockroach Legs**:
- Cockroach legs are segmented and consist of various parts including coxa, femur, tibia, and tarsus.

2. **Identifying Each Option**:
- **Coxa**: This is the joint that connects the leg to the thorax. It is present in the cockroach leg.
- **Tibia**: This is one of the segments of the leg, located between the femur and the tarsus. It is also present in the cockroach leg.
- **Femur**: This is the segment of the leg that is often referred to as the thigh. It is present in the cockroach leg.
- **Fibula**: This is a bone that is typically found in the legs of vertebrates, but it is not a part of the cockroach leg structure.

3. **Conclusion**:
- After analyzing all the options, we can conclude that the **fibula** is the structure that is absent in the segment of a cockroach's leg.

### Final Answer:
The structure that is absent in the segment of a cockroach's leg is the **fibula**.

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