In the life cycle of $Plasmodium$,where does the exo-erythrocytic cycle occur?

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.

In malaria,shivering occurs when

Infection of $Entamoeba \ histolytica$ can be checked by

Assertion $A$: $A$ patient suffering from malaria becomes pale and weak.
Reason $R$: $Plasmodium$ causes the breakdown of hemoglobin and destruction of red blood cells $(RBCs)$.
Which option is correct for Assertion $A$ and Reason $R$?

After how many days does a patient typically begin to feel the symptoms of malaria from the time of the mosquito bite?