PATHOLOGY

Detailed explanation-1: -Plasmodium protozoa cause malaria. The parasites are spread by a mosquito vector. Parasites enter a host’s blood through the bite of an infected mosquito. The parasites infect the host’s red blood cells, causing symptoms such as fever, joint pain, anemia, and fatigue.

Detailed explanation-2: -Some severe diseases of humans caused by protists (primarily blood parasites) are Malaria, Trypanosomiasis (African sleeping sickness), Leishmaniasis, Toxoplasmosis, and Amoebic dysentery. 5.

Detailed explanation-3: -The causative agent of malaria is a parasite called Plasmodium, which is a protist. Protists are single-celled eukaryotes.

Detailed explanation-4: -Examples of protists include various unicellular red algae, such as Cyanidioschyzon merolae; unicelluar green algae, such as Chlamydomonas reinhardtii; and marine diatoms, such as Thalassiosira pseudonana.