Which of the following microorganisms causes malaria?
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Plasmodium
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Anopheles
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Entamoeba
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Rhizopus
A
Correct answer
Explanation
Malaria is caused by protozoan parasites of the genus Plasmodium (P. falciparum, P. vivax, P. ovale, P. malariae). These parasites infect red blood cells and cause the characteristic fever cycles, anemia, and complications of malaria. Anopheles is the mosquito genus that transmits Plasmodium but does not cause malaria itself. Entamoeba causes dysentery, and Rhizopus is a fungus that causes mucormycosis.