What Kind of Printer Uses a Grid of Tiny Pins

question 9

Multiple Choice

What kind of printer uses a grid of tiny pins, also known as printwires, to strike an inked printer ribbon and produce images on paper?

• A)Dot-matrix
• B)Inkjet
• C)Laser
• D)Thermal

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Definitions:

Guard Cells

Specialized cells in the epidermis of leaves, stems, and other organs that regulate gas exchange and water loss by controlling the opening and closing of stomata.

Stomata

Tiny openings or pores found in the epidermis of leaves and stems that allow for gas exchange between the plant and its environment.

Palisade Mesophyll

The layer of closely packed cells in a plant leaf where most photosynthesis occurs.

Upper Epidermis

The outermost layer of cells in the upper part of a plant leaf or stem, serving as a protective barrier against the environment.