[Solved] Economy refers to: A)avoiding topics that will demand too much of the audience. B)keeping a speech as short as possible to keep audience attention. C)the potential for becoming a speaker who will be paid. D)simplifying the language so that any audience can understand it. E)using only the words necessary to convey ideas accurately. Amygdala: A section of the brain that is responsible for detecting fear and preparing for emergency events. Medulla: the base of the brainstem; controls heartbeat and breathing. Erotic Plasticity: Refers to the degree to which an individual's sex drive can be changed by societal or situational factors. Refractory Periods: The period immediately following an action potential during which a neuron is incapable of activating a second action potential, ensuring that signals are sent in only one direction.