In Cockroach, the arthrodial membrane

Options

A. Forms the hind wings
B. Covers the compound eyes
C. Forms the hypopharynx
D. Joins the sclerites

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Cockroach:**
- The body of a cockroach is covered by a tough exoskeleton made up of chitinous plates known as sclerites.

2. **Identifying the Role of Sclerites:**
- Sclerites are the hard, protective plates that make up the exoskeleton of the cockroach, providing structure and protection.

3. **Exploring the Arthrodial Membrane:**
- The arthrodial membrane is a thin and flexible membrane that connects adjacent sclerites.

4. **Determining the Function of the Arthrodial Membrane:**
- The primary function of the arthrodial membrane is to allow flexibility and movement between the sclerites, enabling the cockroach to move efficiently.

5. **Choosing the Correct Option:**
- Among the given options, the correct function of the arthrodial membrane is that it "joins the sclerites." Therefore, the correct answer is option D.

**Final Answer:**
The arthrodial membrane in cockroach joins the sclerites.

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