9th Class Science Why do we fall Ill? Question Bank 9th CBSE Science Why do we fall Ill?

  • question_answer
      Name the diseases caused by the following?(i) Protozoa, (ii) Virus, (iii) Bacteria, (iv) Fungi.  How is malaria transmitted?

    Answer:

                      The diseases caused by various microorganisms are as follows: (i)Protozoa: Malaria, amoebiosis, dysentery, giardiasis, kala-azar, etc. (ii) Virus: AIDS, polio, dengue, rabies, chicken pox, influenza, etc. (iii) Bacteria: Pneumonia, diphtheria, tuberculosis, meningitis, leprosy, typhoid, tetanus, syphilis, etc. (iv) Fungi: Fungi mainly causes skin diseases and food poisoning. Malaria is caused by a parasite found in female Anopheles mosquitoes. When the mosquitoes carrying the malarial parasite bite a person, the parasite enters the blood stream and the person suffers from malaria.


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