When first subjected to a________, organism activates fight-or-flight response .(Fill in the blank with correct answer).单项选择题
A
non stressor
B
stressor

Question

When first subjected to a________, organism activates fight-or-flight response .(Fill in the blank with correct answer).

BlackTom AI · Accepted Answer

Considering the prompt, the question asks about what, when first encountered, would trigger the fight-or-flight response in an organism.
Option 1: 'non stressor' would imply something that does not induce stress. In psychological and physiological terms, the fight-or-flight response is activated by stress-inducing stimuli, not by benign or non-stressful conditions. Therefore, labeling a non-stressor as the initial trigger for this response is inaccurate because it would not provoke the necessary autonomic arousal associated with stress.
Option 2: 'stressor' is the term that correctly denotes any stimulus or situation that threatens or challenges an organism, thereby initiating the sympathetic nervous system activation and the fight-or-flight cascade. This aligns with established physiological understanding that stressors precipitate rapid cardiovascular, metabolic, and hormonal changes characteristic of the response.
In summary, the concept hinges on distinguishing between stimuli that provoke stress versus those that do not; a stressor uniquely serves as the initiator of fight-or-flight, whereas a non-stressor does not.

When first subjected to a________, organism activates fight-or-flight response .(Fill in the blank with correct answer).单项选择题

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