A testis is covered by a dense covering called:

Options

A. Tunica albuginea
B. Endothecium
C. Scrotal layers
D. Glans penis

Explanation

To solve the question "A testis is covered by a dense covering called:", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organ**: Recognize that the question is about the testis, which is a male reproductive organ.

2. **Understand the Structure**: The testis has various structural components and coverings. One of the key coverings is known for its density.

3. **Recall the Options**: The options provided are:
- A) Tunica albuginea
- B) Endothelium
- C) Scrotal layers
- D) Glans penis

4. **Analyze the Options**:
- **Tunica albuginea**: This is known to be a dense, fibrous covering of the testis.
- **Endothelium**: This refers to a thin layer of cells lining blood vessels and is not related to the testis covering.
- **Scrotal layers**: While the testis is located within the scrotum, this term does not specifically refer to the dense covering of the testis itself.
- **Glans penis**: This refers to the tip of the penis, not a covering of the testis.

5. **Conclude the Answer**: Based on the analysis, the correct answer is **A) Tunica albuginea**, as it is the dense covering that surrounds the testis.

### Final Answer:
A testis is covered by a dense covering called **Tunica albuginea**.

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