Linked from
The 17 pages that link to Plasmodium, each with the reason it gives.
ParasiteBroader topic: Its two-host life cycle illustrates how parasites can depend on vectors.
AnophelesRelated: Anopheles mosquitoes transmit Plasmodium parasites during blood feeding.
CinchonaRelated: Quinine's antimalarial effect targets stages in the parasite's life cycle.
ParasitologyBroader topic: Its multi-host life cycle makes it a defining parasitological case.