WAEC - Biology (2000 - No. 23)
Which of the following is responsible for the increased heart beat of a boy who saw a python? increased
production of
production of
adrenalin
insulin
pituitrin
thyroxin
ব্যাখ্যা
Adrenaline is the hormone associated with fear and anxiety. it prepares the body for emergency and also increases heartbeat and respiration.