Queried GO term:

  idGO:0009581   Detailed information
  namedetection of external stimulus
  namespacebiological_process
  def"The series of events in which an external stimulus is received by a cell and converted into a molecular signal." [GOC:hb]
  subsetgosubset_prok
  is_aGO:0009605 ! response to external stimulus
  is_aGO:0051606 ! detection of stimulus

No monarch genes has the input GO term: GO:0009581.