ICSE Class 9 Biology Question 8 of 11

Diseases: Cause and Control — Question 3

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Question 3

Mention whether the following statements are true (T) or false (F).

(a) Filariasis is transmitted by the housefly.

(b) Malaria is caused by a protozoan.

(c) BCG vaccine is used for chicken pox.

(d) Louis Pasteur discovered a cure for malaria.

(e) AIDS is caused by a bacterium.

(f) HIV is a serious disease, usually fatal.

(g) AIDS is not transmitted by contact with a patient's clothes.

(h) Chicken pox and hepatitis are bacterial diseases.

(i) Goitre is endemic in sub-Himalayan regions of India.

(j) AIDS is caused by a fungus.

(k) Hay fever and asthma are allergies.

(l) Smallpox still occurs in India.

(m) The disease filariasis is caused by the bite of female anopheles mosquito.

Answer

(a) False
Corrected Statement — Filariasis is transmitted by Culex Mosquito.

(b) True

(c) False
Corrected Statement — BCG vaccine is used for Tuberculosis.

(d) False
Corrected Statement — Louis Pasteur discovered Anthrax vaccine.

(e) False
Corrected Statement — AIDS is caused by a virus named HIV (Human Immunodeficiency Virus).

(f) True

(g) True

(h) False
Corrected Statement — Chicken pox and hepatitis are viral diseases.

(i) True

(j) False
Corrected Statement — AIDS is caused by a virus named HIV (Human Immunodeficiency Virus).

(k) True

(l) False
Corrected Statement — Small pox was eradicated from India in 1979.

(m) False
Corrected Statement — The disease filariasis is caused by the bite of culex mosquito.