Class VIII

The common chemicals generally used to check the growth of microorganisms are known as ...
  1. antibiotics
  2. Preservatives
  3. antigens
  4. pathogens
Chicken Pox is caused by
  1. Virus
  2. Bacteria
  3. Fungus
  4. Protozoa
Which of the following is not a communicable disease?
  1. Cholera
  2. Chicken pox
  3. Tuberculosis
  4. Malaria
Who discovered the vaccine for small pox?
  1. Louis Pasteur
  2. Alexander Fleming
  3. Joseph Lister
  4. Edward Jenner
What does our body produces to fight the invader when a diseasecarrying microbe enters our body?
  1. Antigens
  2. Antibodies
  3. Pathogens
  4. Antibiotics
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