Which of the following is responsible for the increased heartbeat of a boy who saw a python? increased production of by Sunday | May 18 | Biology WAEC | 0 comments A. adrenalin B. insulin C. pituitrin D. thyroxin Correct Answer: Option A A. adrenalin Users Also Read These:Which of the following is not an advisable way…The employer, not the sales boy and his partner…A motor boy of a driver saw what seem to appear to…Which of the following organs is responsible for the…The hydrostatic blood pressure difference between…