________ Systems Have Been Developed for Purchases of Less Than

question 20

Short Answer

________ systems have been developed for purchases of less than $10,such as downloads of individual articles or music clips,which would be too small for conventional credit card payments.

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Definitions:

White Matter

The pale-colored part of the central nervous system that is composed of myelinated nerve fibers.

Ascending Tracts

Nerve pathways that go upward in the spinal cord and brainstem, conveying sensory information from the body to the brain.

Decussate

To cross or intersect so as to form an X; often refers to neural pathways in the central nervous system.

Cervical Enlargement

a widened area of the spinal cord that supplies nerves to the upper limbs.