Part E - Characteristics of Protozoa For this section, you will identify statements that accurately describe medically important protozoa. Select the statements that correctly describe protozoa. View Available Hint(s) As a group, protozoa exhibit both asexual and sexual reproduction. While living in the gut of their host, intestinal protozoan parasites are usually in the trophozoite form. Protozoa can be unicellular or multicellular. Most protozoan parasites are photoautotrophic. Most protozoa are obligate anaerobes. Protozoan cysts enable protozoan parasites to surpive during passage from one host to the next. Most protozoa are motile via pseudopods, flagella, cilia, or undulating membranes. .