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Science TNSB Mentoring
Class 9
World of Microbes
Air borne and water borne diseases
1.
Classification of disease based on occurence
Question:
3
m.
Choose the best answer:
1
.
The unicellular or multicellular organisms that cause infection are called ____
Symbiotic agents
Saprophytic agents
Infectious agents
None of the above
2
.
Which of the following statement explains a pandemic disease?
Affects a particular geographical area
Lower occurrence frequency
Affects all over the countries or continents
None of the above
3
.
The word endemic refers to
in the microbe
in the diseases
in the population
in the medicine
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