Which of the following organisms is the carrier of malaria causing protozoan?
-
Entamoeba
-
Mosquito
-
Housefly
-
Dog
B
Correct answer
Explanation
Malaria is caused by the protozoan Plasmodium, which requires a vector to complete its life cycle and transmit between humans. The female Anopheles mosquito serves as this carrier (vector) - when it bites an infected person, it takes up Plasmodium gametocytes, which develop in its gut and are later injected into a new host during another blood meal. Entamoeba causes dysentery, houseflies spread mechanical contamination, and dogs carry rabies virus.