Which species of $Plasmodium$ has the longest incubation period?

In $Plasmodium$ $vivax$,fertilization occurs in:

If the liver is removed from a human and that human is bitten by a female $Anopheles$ mosquito,can malaria occur?

The stage of the life cycle of the malaria parasite $Plasmodium$ $vivax$ that passes through the female $Anopheles$ mosquito is ..........

Assertion $A$: $A$ patient suffering from malaria experiences chills and high fever.
Reason $R$: The rupture of red blood cells by the $Plasmodium$ parasite releases a toxic substance called haemozoin into the blood.

Which toxin is responsible for the chill and high fever during malaria?