Indiana Science Grade 7

Chapter 6: Circulation and Immunity

Immunity

1.
Which of these is a first-line defense against pathogens?
A)skin
B)vaccination
C)inflammation
D)active immunity
2.
What are formed in the blood to fight invading antigens?
A)antibodies
B)hormones
C)allergens
D)pathogens
3.
_______ immunity results when antibodies that have been produced in another animal are introduced into your body.
A)Passive
B)Active
C)Antigen
D)Antibody
4.
A vaccine is a form of the _______ that gives you active immunity against a disease.
A)antigen
B)antibody
C)bacteria
D)pathogen
5.
Which of these cells surround and digest foreign organisms and chemicals?
A)white blood cells
B)red blood cells
C)Preservation
D)tissues
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