Vivax and falciparum are types of which pathogenic microorganism?

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 $R$?

$Phlebotomus$ $argentipes$ is a vector for

Which toxic substance is responsible for the chills and high fever recurring every three to four days in malaria?

In humans,the life cycle of $Plasmodium$ is observed in how many stages?

The malignant tertian malaria is caused by