The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.

Synonyms: Adaptation, Physiological, Physiologic Adaptation, Physiological Adaptation, Plasticity, Adaptive, Adaptations, Physiological, Adaptive Plasticity, Physiological Adaptations, Adaptations, Physiologic, Phenotypic Plasticity, Physiologic Adaptations, Plasticity, Phenotypic, Adaptation, Physiologic