Final answer:
In a homeostatic mechanism, the control center activates the appropriate actuator/s if the sensor value is outside the stored value.
Step-by-step explanation:
In a homeostatic mechanism, the sensor component plays a crucial role in sensing the value of a variable and sending data to the control center. If the sensor value is outside the stored value, the control center will initiate a response by activating the appropriate actuator/s. Actuators are devices that convert electrical or mechanical signals into physical action.
For example, let's consider a thermostat in a heating system. The sensor detects the temperature in the room and sends this information to the control center. If the temperature is below the set point, the control center activates the actuator, which in this case is the heating element, to generate heat and increase the room temperature.
In summary, when the sensor value is outside the stored value, the control center triggers the appropriate actuator/s to bring the variable back to the desired set point or within the normal range.