Final answer:
The non-progressive stage adaptive responses refer to the 'stage of resistance' in the General Adaptation Syndrome, representing the body's adaptation to prolonged stress, where the stress response is less intense yet allows the organism to continue to cope with the stressor.
Step-by-step explanation:
The non-progressive stage adaptive responses refer to the stage of resistance, which is the second phase in the General Adaptation Syndrome (GAS) model developed by Hans Selye. In this stage, after the initial alarm reaction, the body continues to combat stress but with reduced intensity due to adaptation. For instance, when facing prolonged starvation, the body adapts by enhancing nutrient absorption from the food consumed. Similarly, in the context of the immune system, the adaptive immune response provides specific, tailored reactions to pathogens and relies on memory cells after primary exposure for quicker responses in the future.
The stage of resistance is crucial in maintaining homeostasis during prolonged stress, allowing the body to cope more efficiently than during the intense initial alarm stage. However, if stress persists without relief, the body may eventually enter the final stage, which is stage of exhaustion, where the body's resources are depleted, leading to negative health consequences.