As Production Increases,variable Costs Per Unit ____

question 79

Multiple Choice

As production increases,variable costs per unit ____.

• A) increase.
• B) decrease.
• C) stay the same.
• D) can not be predicted.

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Definitions:

Tight Junction

Cell junction that fastens together the plasma membrane of adjacent epithelial cells; collectively prevent fluids from leaking between the cells. Composed of adhesion proteins.

Plasmodesma

Cell junction that forms an open channel between the cytoplasm of adjacent plant cells.

Adhering Junction

Cell junction that fastens an animal cell to another cell, or to basement membrane. Connects to cytoskeletal elements inside the cell; composed of adhesion proteins.

Transport Proteins

Proteins involved in the movement of ions, small molecules, or macromolecules, such as another protein, across a biological membrane.