For every one neuron in the human nervous system, there is/are _____ glial cell(s)

The four validity scales on the MMPI are designed to

a. assure the person taking the test is answering the questions reliably and accurately. b. assess the test's objectivity. c. guarantee the test is generalizable to other people. d. classify the nature of the person's disorder. e. facilitate test administration.

Which of the following is associated with increased risk of contracting HIV?

A) Having fewer partners B) Being circumcised C) Having prior STIs D) Having certain genetic factors