Description of classification of parasitic protozoans with examples

Parasitic protozoans are unicellular eukaryotic organisms that live in or on a host, obtaining nutrients and causing harm. They are heterotrophic and can reproduce both asexually and sexually. Many have complex life cycles involving multiple hosts. Here are examples from different protozoan groups: Flagellates (Mastigophora): These protozoans move using flagella. An example is Trypanosoma brucei, which causes African sleeping sickness* in humans. Amoeboids (Sarcodina): These move using pseudopods. An example is Entamoeba histolytica, which causes amoebic dysentery*. Sporozoans (Apicomplexa): These are non-motile and obligate intracellular parasites. An example is Plasmodium falciparum, the causative agent of malaria*. Ciliates (Ciliophora): These move using cilia. While most are free-living, Balantidium coli is a parasitic ciliate that can cause balantidiasis*. 3 done, 2 left today. You're making progress.