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Subjects
Science CBSE
Class 8
Microorganisms - Friend and Foe
Helpful and diseasecausing microorganisms
44.
Vaccines and disease causing organisms
Exercise condition:
6
m.
Choose the best answer:
1
.
Who coined the term vaccine
Louis Pasteur
Robert Brown
Robert Koch
Robert Gallo
2
.
Attenuation is the process of
Weakening the virulence of pathogenic microorganisms with losing the ability to inhibit immunity.
Weakening the virulence of pathogenic organisms without losing the capacity to
3.
Which one of the following disease caused by a virus is
Tuberculosis
Diphtheria
Whooping Cough
Chickenpox
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