Identify the mismatched pair:

Fertilization of gametocytes of $Plasmodium$ $vivax$ takes place in . . . . . . .

Identify the correct statements from the following:
$(i)$ The cryptozoite ingests food and becomes spherical.
$(ii)$ Sporozoites enter the human blood.
$(iii)$ Two stages of the life cycle are observed in Plasmodium.
$(iv)$ The cryptozoite transforms into cryptomerozoites.

Amoebiasis can be prevented by .............

Assertion : $Plasmodium$ $vivax$ is responsible for malaria.
Reason : Malaria is caused by polluted water.

Haemozoin is a