Which of the following is a common medication used to treat Parkinson's disease by supplying a combination of levodopa and carbidopa?

If you have chickenpox as a child, what is the reason you are unlikely to get it again?

a. You have extra macrophages from the previous chicken pox, and they will engulf this strain too. b. You have cell-mediated immunity c. You have circulating B memory cells for the chickenpox. d. none of the above

What event provided the foundation for psychophysics?

a. Fechner’s publication of the Elements of Psychophysics b. Weber’s discovery of the Just Noticeable Difference c. Weber’s research on the two-point threshold d. Fechner’s work on absolute and relative thresholds