Stomata, trichomes and root hairs are included in :-

Options

A. Epidermal tissue system
B. Ground tissue system
C. Vascular tissue system
D. Fundamental tissue system

Answer

To answer the question "Stomata, trichomes, and root hairs are included in:", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**: First, we need to identify what stomata, trichomes, and root hairs are.
- **Stomata** are small openings on the surface of leaves that allow for gas exchange.
- **Trichomes** are hair-like structures on the epidermis of plants that can serve various functions, including protection and reducing water loss.
- **Root hairs** are extensions of root epidermal cells that increase the surface area for water and nutrient absorption.

2. **Classify the Tissues**: Next, we classify these structures based on their tissue type.
- All three structures (stomata, trichomes, and root hairs) are associated with the outer layer of the plant.

3. **Understand Dermal Tissue**: The outermost layer of the plant is known as the **dermal tissue**. This tissue serves protective functions and is involved in processes like gas exchange and water retention.
- Stomata are found within the epidermis, which is part of the dermal tissue.
- Trichomes also arise from the epidermis and are part of the dermal tissue.
- Root hairs are extensions of epidermal cells in the roots.

4. **Conclusion**: Since all three structures are part of the outer protective layer of the plant, they are classified under **dermal tissue**.

### Final Answer:
Stomata, trichomes, and root hairs are included in **dermal tissue**.

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