The law requires that certain records be maintained for every employee.

Which anatomical structure is the tough band that encases the intervertebral disc material?

a. annulus fibrosis b. circle of Willis c. intervertebral foramina d. nucleus pulposus

A living organism that carries microorganisms from an infected person to another person is called a(n) ____. 

A. fomite B. vector C. antigen D. microphage E. macrophage