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:The bones of the legs of a six years old boy are…The hydrostatic blood pressure difference between…A seller increased the quantity he offered for sale…The employer, not the sales boy and his partner…The doctor listened to my heartbeat with a _______