In Negative Feedback,the (1)_____ Monitors the Controlled Condition

Short Answer

In negative feedback,the (1)_____ monitors the controlled condition.
Input about the controlled condition is sent to the (2)__________,which evaluates the information received and compares it to the controlled conditions set point.
If needed,a(n)(3)______ will cause a change to the controlled condition.
Homeostasis helps maintain controlled conditions at a(n)(4)_____,which is the ideal range.
Drop Down Choices:
Control center
Effector
Receptor
Set point