Glencoe Science Level Green

Chapter 13: Circulation and Immunity

Diseases

1
Which of these fights invaders of your body?
A)white blood cells
B)lymphocytes
C)diastolic pressure
D)inferior vena cava
2
A(n) _____ is a form of the antigen that gives you active immunity against a disease.
A)inflammation
B)antibody
C)drug
D)vaccine
3
Why is skin considered the first line of defense against pathogens?
A)Most pathogens cannot get through unbroken skin.
B)Skin secretes hydrochloric acid that kills pathogens.
C)White blood cells are most concentrated on the skin.
D)Vaccines are injected through the skin.
4
Disease-causing organisms are called ______.
A)pathogens
B)antigens
C)antibodies
D)white blood cells
5
Which is NOT part of the response of your immune system to a disease-causing organism?
A)vaccination
B)recognition
C)disposal
D)immunity
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