Who discovered Plasmodium in human red blood cells?

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.

Into what does the metacryptoschizont transform through asexual reproduction?

Where are the sporozoites located in the life cycle of Plasmodium?

The vector for "Sleeping Sickness" is . . . . . . .

Assertion $A$: In the human body,$Plasmodium$ exhibits sexual reproduction.
Reason $R$: Sporozoites enter the salivary glands of the female $Anopheles$ mosquito.