<prompt> Which of the following is derived from Ist arch?Frontonasal processMaxillary processMandibular processBoth maxillary mandibular processes  <response>: Face is developed from five facial primordia appear as prominences of mesenchyme:?One frontonasal process : Begins as a proliferation of mesenchyme on ventral surface of developing brain.Two maxillary processes : Grow out from the upper end of each first arch.Two mandibular processes : Grow from each first arch. 