Can anyone help with this assignment?

Instruction: Your task with this activity is to take a closer look at two "everyday" scenarios and determine if they are an example of a negative or positive feedback system. Please read carefully and use your best judgement.

Understanding Feedback Control Systems

Feedback control systems are an essential component to our body maintaining homeostasis. There are two types of feedback control systems (also known as feedback loops): negative feedback and positive feedback. Your task with this activity is to take a closer look at two "everyday" scenarios and determine if they are an example of a negative or positive feedback system.

Remember:

• In a (homeostatic) positive feedback system, a change to the controlled variable or condition sets in motion a sequence of events that will amplify the initial change - and will continue until the stimulus that caused the change is removed
• In a negative feedback control system, a change in the controlled variable or condition sets in motion a sequence of events that tends to reverse or negate the initial change - and will return the variable or condition to its set point

Scenario A: The cruise control function on a car which keeps the speed at 55 mph.

• What is the controlled condition or variable in this scenario?

• Is the condition or variable enhanced/changed by a stimulus or kept within set limits?

• Is this an example of a positive or negative feedback system and why?

• Give and explain another example of this type of (homeostatic) feedback loop that is not mentioned in your text (it could pertain to the body or an "everyday" scenario - be sure to cite source of answer if taken from an external source/location):

Scenario B is on next page...

Scenario B: Traffic on the highway flows freely until an accident occurs. Then, traffic backs up with gawkers and continues to slow, backing up further, until the accident is cleared, and traffic flows freely again.

• What is the controlled condition or variable in this scenario?

• Is the condition or variable enhanced/changed by a stimulus or kept within set limits?

• Is this an example of a positive or negative feedback system and why?

• Give and explain another example of this type of (homeostatic) feedback loop that is not mentioned in your text (it could pertain to the body or an "everyday" scenario - be sure to cite source of answer if taken from an external source/location):