Name the conductivity elements of xylem.

Explanation

### Step-by-Step Solution

1. **Understanding Xylem**: Xylem is a type of tissue in vascular plants responsible for the transport of water and nutrients from the roots to the rest of the plant.

2. **Identifying Conductive Elements**: The main conductive elements of xylem are responsible for the conduction of water and minerals.

3. **Listing the Conductive Elements**:
- **Tracheids**: These are elongated cells that help in the conduction of water and provide structural support.
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