The head of cockroach lacks

Options

A. Cardo
B. Gena
C. Frons
D. Trochanter

Answer

To answer the question "The head of cockroach lacks," we need to analyze the components of the cockroach's head and identify which option is not present.

### Step-by-Step Solution:

1. **Understand the Structure of the Cockroach Head**:
- The head of a cockroach is triangular in shape and consists of six fused segments.

2. **Identify the Components of the Head**:
- The head contains compound eyes, a mouth, and various mouthparts.
- The mouthparts include the labrum (upper lip), labium (lower lip), a pair of mandibles, and maxillae.

3. **Analyze the Options Provided**:
- The options given are:
- Cardo
- Guina
- Fronts
- Trochanter

4. **Determine the Role of Each Option**:
- **Cardo**: This is a part of the maxilla, which is present in the head.
- **Guina**: This term seems to be a misspelling or confusion; it is not a recognized anatomical term in the context of cockroach anatomy.
- **Fronts**: This likely refers to the "frons," which is a part of the head, specifically the forehead region.
- **Trochanter**: This is a segment of the leg, not part of the head.

5. **Conclude the Correct Answer**:
- Since the trochanter is a part of the leg and not the head, the correct answer to the question "The head of cockroach lacks" is **Trochanter**.

### Final Answer:
The head of the cockroach lacks **Trochanter**.

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