Tongue like structure in periplaneta is :

Options

A. Maxilla
B. Hypopharynx
C. Labium
D. Labrum

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the tongue-like structure found in Periplaneta, which is the scientific name for the cockroach.

2. **Identifying the Options**: The options provided are:
- Maxilla
- Hypopharynx
- Labium
- Labrum

3. **Analyzing Each Option**:
- **Maxilla**: This refers to the upper jaw in many vertebrates. In insects, it is part of the mouthparts but does not resemble a tongue.
- **Hypopharynx**: This is an appendage or thickened fold located on the floor of the mouth of many insects, including cockroaches. It resembles a tongue.
- **Labium**: This is a fused mouthpart that forms the floor of the mouth in insects. It does not resemble a tongue.
- **Labrum**: This structure corresponds to the upper lip of insects and does not resemble a tongue.

4. **Selecting the Correct Answer**: Based on the analysis, the hypopharynx is the structure that resembles a tongue in Periplaneta (cockroach). Therefore, the correct answer is **Hypopharynx**.

5. **Conclusion**: The tongue-like structure in Periplaneta is the **Hypopharynx**.

---