In Cockroach the longest podomere is

Options

A. (a) coxa
B. (b) trochanter or Femur
C. (c) tibia
D. (d) tarsus

Answer

To determine the longest podomere in a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Cockroach Legs**:
- Cockroaches have six legs, each consisting of several segments known as podomeres.

2. **Identify the Podomeres**:
- Each leg of a cockroach is divided into five main podomeres:
- Coxa
- Trochanter
- Femur
- Tibia
- Tarsus

3. **Analyze the Length of Each Podomere**:
- Examine the relative lengths of each podomere based on their anatomical position and structure.
- The coxa is the base segment, the trochanter connects the coxa to the femur, the femur is the thigh segment, the tibia is the long segment below the femur, and the tarsus is the segment at the end of the leg.

4. **Determine the Longest Podomere**:
- From the analysis, it is observed that the tibia is significantly longer than the other podomeres (coxa, trochanter, femur, and tarsus).

5. **Conclude the Answer**:
- Therefore, the longest podomere in a cockroach is the **tibia**.

### Final Answer:
The longest podomere in a cockroach is the **tibia**.

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