What are examples of organisms in the kingdom protista?
Contains variety of primitive cells that do not form tissue. These include protozoans (trypanasoma brucei and plasmodium falciparum), protophytas (plankton), and fungi-like cell (oomycetes)
Protozoans like trypanasoma brucei and plasmodium falciparum are major cause of disease like sleeping sickness and malaria.
There are also creatures that can be confused with protists like rotifer, daphnia, and cypris. These are multicellular creatures.