ESS Test 5 (11th) 21-22

Feedback mechanisms are

• ways in which a system closes to the outside

• ways in which a system opens to the outside

• ways in which a system respond to a disturbance

Negative Feedback is the

• system's action to expand the system

• system's action to counteract any deviation from an equilibrium

• system's action to enhance a change in order to reach a new equilibrium

Positive Feedback is the

• system's action to expand the system

• system's action to counteract any deviation from an equilibrium

• system's action to enhance a change in order to reach a new equilibrium

Negative Feedback can be considered as a

• vicious circle

• self-regulatory mechanism

• altering mechanism

Positive Feedback can be considered as a

• vicious circle

• self-regulatory mechanism

• altering mechanism

This graph is a depiction of

• Positive Feedback

• Negative Feedback

• None

Give an example of negative feedback

Positive feedback

• tends to amplify change away from the equilibrium

• helps to maintain stability

• none of the above

Negative feedback

• tends to amplify change away from the equilibrium

• helps to maintain stability

• none of the above

Give an example of positive feedback