If a primary root continues to grow. the type of root system will be known as :

Options

A. Secondary
B. Fibrous
C. Tap
D. Stilt

Answer

To solve the question, "If a primary root continues to grow, the type of root system will be known as:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Root Types**:
- Roots can be classified into two main types: tap roots and fibrous roots.
- A tap root system is characterized by a single primary root that grows deeper into the soil, while fibrous roots consist of many thin roots that spread out.

2. **Identifying the Primary Root**:
- The primary root is the first root that emerges from a seed during germination.
- If this primary root continues to grow and becomes the dominant root, it indicates a tap root system.

3. **Characteristics of Tap Root System**:
- In a tap root system, the primary root grows vertically downward and can produce lateral roots, which are known as secondary and tertiary roots.
- This structure helps anchor the plant firmly into the soil, providing stability and access to deeper water sources.

4. **Conclusion**:
- Since the question specifies that the primary root continues to grow, we conclude that the root system in question is a **tap root system**.

5. **Final Answer**:
- The correct answer is **Tap Root System**.