What is sap?

Explanation

### Step-by-Step Solution:

1. **Definition of Sap**: Sap is a fluid found in plants that plays a crucial role in their transport system.

2. **Components of Sap**: The primary components of sap include water, nutrients, and various organic and inorganic substances.

3. **Transportation in Plants**: Sap is transported through two main types of vascular tissues in plants:
- **Xylem**: Responsible for the transport of water and dissolved minerals from the roots to other parts of the plant.
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