8. What is the main organ for respiration
A.Larynx
B.Lungs
C.Nose
D.Trachea
9. What will happen to the cells of the body when there is am absence of oxygen
A.The cells will continue to grow and multiply
B.The cells will be inactive
C.The cells will survive
D.The cell will die
10. Which of the following is NOT a part of the circulatory
system?
A Blood
C. Brain
B. Blood vessel
D. Heart
11. Which part of the circulatory system pumps blood
around the body?
A Arteries
C. Heart
B. Capillaries
D. Veins
12. What does the blood do for the body?
A. Stores nutrient for the body.
B. Balances the amount of salt and water in the body.
C. Filters waste products from all the parts of the body,
D. Distributes absorbable food nutrients throughout the
body
13. What comprises the central nervous system?
A. Brain and spinal cord
B. Brain and nerve cells
C. Cranial and spinal nerve
D. Muscles and motor nerve
14. Why is the nervous system important?
A. It enables us to think.
B. It controls involuntary actions.
C. It helps us learn and remember.
D. All of the above​