Here's why:

* Xylem is a type of vascular tissue in plants responsible for transporting water and dissolved minerals upwards from the roots to the rest of the plant.

* Phloem is another type of vascular tissue responsible for transporting sugars (food) produced by photosynthesis from the leaves to other parts of the plant.

Therefore, anything that doesn't contain xylem and phloem wouldn't have a system for transporting water and food.

Let me know if you have any other questions!