What group of protozoans do most disease-causing protists belong? What are three protozoans in that group?

Question

I need only serious answers PLEASE! Thanks to all of those that can help.

Answer 1

Phylum Rhizopoda : Amoebas Phylum Rhizopoda contains about 200 species. The Amoeba proteus, commonly called the Ameba is one of the most thoroughly studied protists. This formless group of organisms use pseudopodia for movement and feeding. These organisms are found worldwide, in soil, in salt and fresh water, and in the bodies of animals. The species Entamoeba histolytica, can cause a serious disease in humans if it finds its way into the intestine.

Phylum Zoomastigina: Zooflagellates The organisms in this group contain whip-like flagella. The nutritional habits of these organisms range from free-living, freshwater or marine, and symbionts or parasitic. Termites cannot live without a certain zooflagellete in their intestine producing cellulose digesting enzymes. Trypanosomes, which live in the blood of vertebrates causing sleeping sickness and Chagas' disease. Leishmaniasis is transmitted by sand flies in Africa, causing ulcers on the skin and internal organs. If untreated, it is fatal within two years.

Phylum Apicomplexa All apicomplexans are parasites. In typical parasite fashion, most have complicated life cycles, often with two different hosts. The phylum name is named for the "apical complex" found on the end of the motile stage used to enter the host. Human malaria is caused by four species of Plasmodium.

Answer 2

You're going to want to google the animal-like protists.

This list should get you started:
http://www.cbu.edu/~seisen/ProtistsI.htm

Answer 3

http://www.tolweb.org/notes/?note_id=53

Hope this will help you