After the reality of a loved one’s passing sets in, a mourning individual enters a period of ______.

Tera has a disorder that is untreatable and produces blindness and muscle degeneration prior to death. Her diagnosis would be

a) fragile X syndrome. b) Tay-Sachs disease. c) Klinefelter's syndrome. d) hemophilia.

If Professor Gannon were to argue that incoming pain sensations must pass through an opening in the spinal cord and that this opening could be closed, thus blocking ascending pain signals, which theory would Dr. Gannon be arguing?

a. place b. frequency c. volley d. gate-control