Sweat glands are :-

Options

A. Merocrine
B. Endocrine
C. Holocrine
D. Unicellular

Answer

**Step-by-Step Solution:**

1. **Identify the Types of Glands:**
- Glands in the body can be classified into different types based on their secretion methods. The main types are merocrine, endocrine, holocrine, and unicellular.

2. **Understanding Sweat Glands:**
- Sweat glands are responsible for producing sweat, which helps in thermoregulation and excretion.

3. **Merocrine Glands:**
- Sweat glands fall under the category of merocrine glands. In these glands, the secretory products are released through exocytosis, meaning that the cells remain intact while secreting their products.

4. **Exclusion of Other Types:**
- **Endocrine Glands:** These glands secrete hormones directly into the bloodstream and are not involved in sweat production.
- **Holocrine Glands:** These glands release their secretions by rupturing the entire cell, which leads to cell destruction. An example of holocrine glands is sebaceous glands, which produce oil for the skin.
- **Unicellular Glands:** These consist of a single cell and do not qualify as glands in the context of sweat production.

5. **Conclusion:**
- Based on the classification and characteristics discussed, sweat glands are classified as merocrine glands.

**Final Answer:**
Sweat glands are merocrine glands.

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