Answered By Emily D

This is a bit of an oddly worded question but it sounds like you're looking for a chain of events that gives you a Negative Feedback Loop, right?

"A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis"

1. A sensor/receptor is required to monitor and limit levels - This is true! Without a sensor, you cannot have feedback, so keep [1] in mind for your answer

2. A sensor/receptor is unnecessary to monitor and limit levels - This is false, it's the opposite of [1]

3. Feedback contributes to homeostasis - This is true! Homeostasis is balance and feedback is trying to create balance, so put [3] in your answer [13]

4. Feedback prevents homeostasis - This is false unless your body is malfunctioning (think hypo/hyperthyroidism)

5. Feedback stimulates the effector to continue doing the same thing - This is false IF we're talking about a negative feedback loop; if we're talking about a positive feedback loop, it would be true

6. Feedback stops the effector from doing one thing and stimulates it to do the opposite - This is false; usually feedback loops only affect one function (the light is on or the light is off)

7. When the target level for a hormone is reached, feedback results in an increase of that hormone being released - This is only true sometimes and only for positive feedback loops

8. When the target level for a hormone is reached, feedback results in a reduction of that hormone being released - This is true! Add it to the list [138]

So your answer is [138]