Bar Code Readers

question 70

Multiple Choice

Bar code readers:

• A) are devices that use light reflection to read differences in bar code patterns to identify a labeled item.
• B) are devices used for pattern recognition of handwritten or printed characters.
• C) are input devices that capture printed images or documents and convert them into electronic digital signals that can be stored on computer media.
• D) are computer-based systems for capture, storage, retrieval, and presentation of images of objects such as pictures and documents.

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Definitions:

Insect Flight Muscles

Specialized muscles in insects that provide the power for flight, capable of extremely fast contractions.

Collagen Fibers

Strong and flexible proteins that form the main component of connective tissue, giving support and structure to skin, bones, and other tissues.

Osteoblasts

Cells with the principal function to synthesize and secrete the collagen matrix and ground substance of bone tissue, initiating bone formation.

Sarcoplasmic Reticulum

The system of vesicles in a muscle cell that surrounds the myofibrils and releases calcium in muscle contraction; a modified endoplasmic reticulum.