response to hypoxia

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.

• Code: GO:0001666
• Source: Gene Ontology
• Alternative labels: response to sustained hypoxia response to intermittent hypoxia response to hypoxic stress response to lowered oxygen tension