Question:
The disease caused by a protozoan and spread by an insect is
(a) dengue
(b) malaria
(c) polio
(d) measles
Solution:
(b) Malaria is the disease which is caused by the spread of a protozoan, i.e. Plasmodium.
It is spread in healthy individuals by the bite of a female Anopheles mosquito carrying this Plasmodium in their mouth (saliva).