According to this perspective, people change as the interactions of heredity and environment unfold over time:

Martin's memory problems came on slowly over the past 5 years. Now, his memory is so poor that he has serious problems caring for himself. Which of the following best describes Martin's condition

a. Serontonin Syndrome b. Dementia c. Delirium d. Gentrification

Erin has learned to create a "truly red" light by focusing on only one wavelength of the visible spectrum. She is most likely to be concerned with which property of light?

a) intensity b) decibels c) saturation d) accommodation