Long ago, during the early days of television, when a television set was turned off it took a while for the last image that was on the screen to fade away. This phenomenon is most like

What do we call biological changes that occur on a daily schedule?

a) biorhythms b) circadian rhythms c) ultradian rhythms d) biophasic rhythms

The simplest solutions to a problem involve ______

a. the use of compensatory models b. accurate representation of the problem c. creating realistic subgoals d. retrieving information from long-term memory