Diseases Cause and Control — Important Questions
ICSE · Class 9 · Biology
42 important questions from Diseases Cause and Control for ICSE Class 9 Biology, with answers. Part of the ICSE Class 9 Biology syllabus.
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Important Questions from Diseases Cause and Control
Which of the following are bacterial diseases?
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Cholera, Typhoid, Tuberculosis
Cholera, typhoid, and tuberculosis are all caused by bacteria. AIDS is caused by a virus (HIV) and malaria is caused by a protozoan (Plasmodium).
The incubation period is the time between infection and appearance of symptoms.
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True
Incubation period is correctly defined as the period between the entry of germs into the body and the appearance of the first symptoms of the disease.
Which of the following are modes of AIDS transmission?
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Sexual contact, Contaminated blood transfusion, Mother to child transmission
AIDS spreads through sexual contact, contaminated blood, and from infected mother to child. It does not spread through casual contact like shaking hands or eating together.
Non-communicable diseases cannot spread from person to person.
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True
Non-communicable diseases are not caused by pathogens and cannot be transmitted from one person to another. Examples include diabetes and heart disease.
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