Question 1

Positive feedback mechanisms are used to:*

A. Maintain homeostasis

B. Increase a change in a variable

C. Decrease a change in a variable

D. Both a and c

Question 2

Which of the following is an example of a positive feedback mechanism?*

A. Blood pressure regulation

B. Blood glucose regulation

C. Childbirth

D. Body temperature regulation

Question 3

Positive feedback mechanisms are always harmful to the body.*

A. TRUE

B. FALSE

Question 4

Negative feedback mechanisms help to maintain a stable internal environment.*

A. TRUE

B. FALSE

Question 5

Homeostasis is the maintenance of a constant internal state.*

A. TRUE

B. FALSE

Question 6

Positive feedback mechanisms are used in blood clotting.*

A. TRUE

B. FALSE

Question 7

A negative feedback mechanism involves:*

A. sensor, a control center, and an effector

B. Only a sensor and an effector

C. Only a control center and an effector

D. None of the above

Question 8

Positive feedback mechanisms help to increase a change in a variable.*

A. TRUE

B. FALSE

Question 9

Homeostasis is the study of the structure of the human body.*

A. TRUE

B. FALSE

Question 10

Artery is more superficial compared to the Vein*

A. TRUE

B. FALSE

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