In which part of alimentary canal of cockroach is invagination of cuticle found ?

Options

A. Anterior part
B. In midpart
C. In posterior part
D. Both in antherior and posterior part

Answer

To answer the question regarding the part of the alimentary canal of the cockroach where invagination of cuticle is found, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Anatomy of the Cockroach:**
- The cockroach has a complex alimentary canal that consists of different parts: the foregut (anterior), midgut, and hindgut (posterior).

2. **Identifying the Role of Cuticle:**
- The cuticle in arthropods, including cockroaches, is made up of a single layer of ectodermal epithelium. This layer is crucial for protection and maintaining the structure of the alimentary canal.

3. **Examining the Cuticle's Presence:**
- The cuticle is not uniform throughout the alimentary canal. It varies in thickness and flexibility depending on the part of the canal and its function.

4. **Locating Invagination of Cuticle:**
- The transcript indicates that the cuticle is present in both the anterior (foregut) and posterior (hindgut) parts of the alimentary canal. This suggests that invaginations, which are inward folds of the cuticle, can be found in these regions.

5. **Conclusion:**
- Based on the information provided, the correct answer to the question is that invagination of cuticle is found in both the anterior and posterior parts of the alimentary canal of the cockroach.

### Final Answer:
The invagination of cuticle is found in both the anterior and posterior parts of the alimentary canal of the cockroach.

---