The answer is <span>operational definition.
Operational definitions it is a dubious in the fields of brain science and psychiatry, where natural ideas, for example, insight should be operationally characterized before they wind up noticeably manageable to logical examination, for instance, through procedures, for example, IQ tests.
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Answer: C racing heartbeat
The alarm stage of stress is more popularly known as the fight or flight stage stage. It is in this stage that the brain sends signals to the different parts of your body taking the message that you are in a perilous situation. Upon receiving the messages and your body started to react, you can choose between the flight and fight response. You can either fight or flee away from that dangerous place. This alarm stage of stress as explained by the father of stress, Hans Selye is commonly characterized by fast and racing heartbeats.
Diffusion.
diffusion acts passively, and the oxygen and carbon dioxide move to the area of lower concentration
This is A.Reality. Why, because most people experience this in there everyday lives and feeling lonely, discouraged or depressed isn't a Myth because some of us do experience it. Feeling down & hopeless still isn't a Myth because we (as I said above) experience this everyday. So the answer is A.Reality.
Hope I helped:-)
-Drey
