Extrastelar ground tissue system includes

Options

A. Epidermis & cortex
B. Cork & cortex
C. Bark cork & cortex
D. Only cortex

Answer

To answer the question regarding what the extrastelar ground tissue system includes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ground Tissue System**:
- The ground tissue system in plants includes all tissues except for the epidermal and vascular tissues. It occupies a large area of the plant body.

2. **Location of Ground Tissue**:
- The ground tissue begins just beneath the epidermis and extends to the center of the plant body.

3. **Types of Basic Tissues**:
- The main types of ground tissues are parenchyma, collenchyma, and sclerenchyma.

4. **Divisions of Ground Tissue**:
- The ground tissue system can be divided into two categories: extrastelar and intrastelar.

5. **Defining Extrastelar Ground Tissue**:
- The extrastelar ground tissue is located outside the stele (the central part of the plant that includes vascular tissues).

6. **Components of Extrastelar Ground Tissue**:
- The extrastelar ground tissue primarily consists of the cortex, which can be divided into three zones:
- Hypodermis
- General cortex
- Endodermis

7. **Conclusion**:
- Based on the definition and components of the extrastelar ground tissue system, we conclude that it includes only the cortex.

### Final Answer:
The extrastelar ground tissue system includes **only the cortex**.