The life cycle begins in a female mosquito, who will bite a human to take a blood meal and pass on the malaria parasite to the human host. Once inside the human, the malaria parasite first goes to the liver. Here, it will replicate, building its forces to begin its attack on the red blood cells.
Once the malaria parasites have replicated in the liver, they go on to infect the red blood cells. Inside the red blood cells, parasites will replicate again and break out of the cell to continue the infection process. The destruction of red blood cells is the stage of infection that results in malaria symptoms. Because the malaria parasites tend to replicate at the same time, the patient often shows the malaria symptoms in bursts. Some of the malaria parasites in the blood will develop into a form that can be taken up by a mosquito, to be passed on to a new host.
So malaria are protist,
But parasites are inside mosquitos which is bitten is transferred into human