Primary root persists in monocotyledonous plants.

Answer

To determine whether the statement "Primary root persists in monocotyledonous plants" is true or false, we can follow these steps:

### Step 1: Understand the Types of Root Systems
- There are three main types of root systems in plants: tap root, fibrous root, and adventitious root.
- **Tap root system**: Characterized by a primary root that is long and persistent.
- **Fibrous root system**: Characterized by many thin roots that spread out from the base of the stem, with the primary root being short-lived.
- **Adventitious root system**: Roots that develop from parts of the plant other than the radical (the embryonic root).

### Step 2: Identify the Root System in Monocots
- Monocotyledonous plants typically have a fibrous root system.
- In this system, the primary root is not persistent; instead, it is replaced by numerous fibrous roots that emerge from the base of the stem.

### Step 3: Analyze the Statement
- The statement claims that the primary root persists in monocotyledonous plants.
- Since monocots have a fibrous root system where the primary root is short-lived and replaced by fibrous roots, the statement is incorrect.

### Conclusion
- Therefore, the statement "Primary root persists in monocotyledonous plants" is **false**.

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