What Term Is Used to Refer to Movement Up or Down

question 89

Multiple Choice

What term is used to refer to movement up or down the stratification system?

• A) exchange mobility
• B) circulatory mobility
• C) horizontal mobility
• D) social mobility

---

Definitions:

Perforation Plate

A structure found within the vessel elements of plants, characterized by a membrane or wall with holes that allow for the movement of water and solutes.

Vessel Elements

Component cells of the xylem tissue in plants that help in conducting water and minerals vertically through the plant.

Tracheids

Long, thin cells in the xylem of vascular plants that help in the transport of water and minerals, and also provide support.

Pits

Small depressions or cavities on a surface or in a structure, often found in fruits or in the landscape.