Term Name:	response to hypoxia
Synonyms:	response to hypoxic stress, response to intermittent hypoxia, response to lowered oxygen tension, response to sustained hypoxia
Definition:	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.
Ontology:	GO: Biological Process [GO:0001666]    QuickGO    AmiGO