(a) Which of the following disease are protozoan in origin?
Dengue, Malaria, Kala-azar and HIV -AIDS
(b) Suggest any two ways to prevent being infected by protozoa.

Which of the following are acquired diseases? I. Kala azar II. Haemophilia III. AIDS IV. Albinism

Which of the following group represent STDs ? A. Typhoid, Dengue,T.B, Malaria B. AIDS,Syphilis,Gonorrhoea

Syphilis, Gonorrhea are the common STDs. Suggest any two method to prevent the infection of disease.

(a) Name the group of viruses responsible for causing AIDS in humans. Why are these viruses so named? (b) List any two ways of transmission of HIV infection in humgns, other than sexual contact.

Which one of the following is a correct match? (a) Filariasis- Taenia solium (b) Encephalitis - Culex (c) Malaria - Phlebotomus (d) Kala-azar- Anopheles