I think It would be somatotropin ( growth hormone)
Explanation: According to the U.S. Census Bureau, there is one birth every eight seconds in the United States, or about 10,800 births per day. Worldwide, approximately 350,000 to 400,000 people are born daily on average.
voluntary movement, perception, homeostasis and cognition (abstract functions)
Personality is the totality of thoughts, emotions, intentions, tendencies, and behaviors that a person exhibits consistently as he or she adapts to the environment.