Here's the breakdown:

* Phloem is a type of vascular tissue in plants responsible for transporting sugars and other nutrients throughout the plant. It's like the plant's "food delivery system".

* Wood is primarily composed of xylem, another type of vascular tissue responsible for transporting water and minerals from the roots to the rest of the plant. It's like the plant's "water plumbing system".

So, while both phloem and xylem are found in trees and other woody plants, they have distinct functions and compositions.