The root tip is covered by a ..............

Explanation

**Step-by-Step Solution:**

1. **Identify the Structure at the Root Tip:**
The root tip is the very end of the root where growth occurs. It is crucial for the root's ability to penetrate the soil.

2. **Understand the Function of the Root Cap:**
The root cap is a protective structure that covers the root tip. Its primary function is to protect the delicate meristematic tissues located just behind it as the root grows and penetrates through the soil.

...