Answer:
A sensor monitors the body's condition > The control center interprets the data and decides what action is necessary > the effector causes and action that returns the body to stable condition
<em>According to DANB's 2018-2019 Dental Assistants Salary and Satisfaction Survey, DANB Certified Dental Assistant (CDA) certificants earn a median salary of $20.76 an hour, $2 more per hour than non-certified dental assistants</em>
The answer for this problem would be Proteins