Epidermis of Balanoglosscus consists of

Options

A. a single layer of cells
B. many layers of cells
C. two layers of cells
D. three layers of cells.

Answer

### Step-by-Step Solution:

1. **Understanding Balanoglossus**:
- Balanoglossus is a marine organism that belongs to the group of hemichordates. It has a body divided into three distinct parts: the proboscis, collar, and trunk.

2. **Identifying the Epidermis**:
- The epidermis is the outermost layer of cells covering the body of an organism. In Balanoglossus, it plays a crucial role in protection and interaction with the environment.

3. **Determining the Structure of the Epidermis**:
- The epidermis of Balanoglossus is composed of a specific number of cell layers. The options provided are:
- A) A single layer of cells
- B) Many layers of cells
- C) Two layers of cells
- D) Three layers of cells

4. **Analyzing the Correct Option**:
- Upon examining the structure of the epidermis in Balanoglossus, it is noted that it consists of a **single layer of epithelial cells**. These cells are described as tall columnar type, with their nuclei located near the base of the cells.

5. **Conclusion**:
- Therefore, the correct answer to the question "Epidermis of Balanoglossus consists of" is **option A: a single layer of cells**.

### Final Answer:
The epidermis of Balanoglossus consists of a single layer of epithelial cells (Option A).

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