Fill in the blanks with the correct option:-
i)Malaria is a___ disease.
ii) Malignant malaria is caused by______ .
iii) The chill and high fever recurring every 3 to 4 days during malaria is due to the rupture of RBCs which causes release of a toxic substance called_______.

i-Protozoan, ii-Plasmodium falciparum, iii-Haemozoin .

Malaria is a protozoan disease. Malignant malaria is caused by Plasmodium falciparum. The chill and high fever recurring every 3 to 4 days during malaria is due to the release of haemozoin a toxic substance.