With age, the spine stiffens as a result of shrinkage of the intervertebral disc spaces, and the vertebrae become brittle. This increases the risk of:

Leukocytes are the workhorses of the immune system and are produced in the:

a. pancreas. b. liver. c. intestines. d. bone marrow.

________ is the processing of a claim by the health plan

A) Explanation of benefits B) Adjudication C) Remittance advice D) Billing service E) Administration of benefits