Which of the following figures shows the mandibles of cockroach ?

Options

A.
B.
C.
D.

Answer

To determine which figure shows the mandibles of a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Figures**: Look at the four figures provided in the question. Each figure represents a different part of the cockroach's mouth.

2. **Analyze Each Figure**:
- **Figure 1**: This figure represents the **labium**, which is the lower lip of the cockroach. Its function is to cover the mouth from the ventral side.
- **Figure 2**: This figure shows the **maxilla**, which acts like the cheeks and helps prevent food from falling out during chewing (mastication).
- **Figure 3**: This figure depicts the **mandibles**. The mandibles are the jaw parts of the cockroach and are responsible for chewing and biting food. They have teeth-like projections with sharp margins.
- **Figure 4**: This figure represents the **labrum**, which is the upper lip and covers the mouth from the dorsal side.

3. **Determine the Correct Figure**: Based on the analysis, the figure that shows the mandibles is **Figure 3**.

4. **Conclusion**: Therefore, the correct answer to the question is **Figure C** (or Figure 3).