Which of the following is the correct order of steps in a negative feedback loop?

• A. Stimulus, Sensor, Control Center, Effector
• B. Effector, Control Center, Sensor, Stimulus
• C. Sensor, Effector, Control Center, Stimulus
• D. Control Center, Effector, Sensor, Stimulus

Answer: (A)

Verified step by step guidance

1. Understand the concept of a negative feedback loop: It is a process that helps maintain homeostasis by counteracting changes in a system. When a change occurs, the system responds to bring conditions back to a set point.
2. Identify the components of a negative feedback loop: These typically include a stimulus, sensor, control center, and effector.
3. Define each component: The stimulus is the change in the environment, the sensor detects the change, the control center processes the information and decides on the response, and the effector carries out the response to counteract the change.
4. Determine the correct sequence: The process begins with the stimulus, followed by detection by the sensor, then processing by the control center, and finally action by the effector.
5. Apply this understanding to the options provided: Compare each option to the correct sequence of a negative feedback loop to identify the correct order.