Page 71 - Reading Success B9

7. You can conclude that
a. without enough white blood cells a body cannot properly combat disease
b. most bacteria and viruses penetrate the body through the mouth and eyes

c. our bodies are capable of successfully combating all diseases on their own
d. white blood cells always win the battle against invading germs

8. Which of the following is an opinion?

a. Some bacteria cannot be seen by an unaided eye.
b. Germs can release toxins.
c. Antibodies persist in the bloodstream.
d. White blood cells are the most important part of the body’s defense against
germs.

9. What is the purpose of the last paragraph?
a. to describe how viruses and bacteria can enter the body
b. to explain how the body becomes immune to certain diseases

c. to explain how white blood cells help combat infection
d. to describe how the body protects itself from being penetrated by disease

10. In the passage the words a boil mean

a. a liquid that has been heated to the point that it begins to vaporize
b. to be angry
c. a painful inflammation of the skin

d. a picnic featuring boiled sea foods

True or False

Check “T” for true and “F” for false.

1. Bacteria and viruses can enter the body through a
T F

cut on the skin.

2. Stomach acid is only used to digest food. T F

3. White blood cells produce antigens. T F

4. Antibodies do not persist in the bloodstream. T F

5. White blood cells kill invading germs by absorbing
T F

and digesting them.

74_Reading Success B 9