Pain that is purely physiological without significant psychological component is referred to as:

What is the role of photopigment in the transduction of light?

a. It reflects light onto the retina. b. It splits apart when struck by a photon and begins the process of transduction. c. It stimulates the production of a molecule derived from vitamin A. d. It recombines to maintain visual acuity. e. It absorbs wavelengths that are not perceived.

In a set of test scores, the mean is 10 and the standard deviation is 2. With these two numbers we know that 95% of the scores fall between ________

a. 9 and 11 b. 6 and 14 c. 4 and 16 d. 8 and 12