. "\"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 an external stimulus.\" [GOC:hb]" . . "response to external stimulus" . "response to environmental stimulus" . "Note that this term is in the subset of terms that should not be used for direct gene product annotation. Annotations to this term will be removed during annotation QC." . .