Final answer:
Protozoans move in three primary ways: using flagella, cilia, or pseudopodia. Flagellates like Trypanosoma utilize a whip-like flagella, ciliates such as Paramecium beat hair-like cilia, and amoebas extend false feet called pseudopodia to move.
Step-by-step explanation:
Protozoans have three main types of movement, which correspond to different groups of animal-like protists. The first group, flagellates, uses one or more flagella. Flagella are long, whip-like structures that rotate and propel the protozoan through its environment. An example of a flagellate is Trypanosoma, which causes African sleeping sickness. The second type of movement involves cilia, which are numerous short, hair-like projections that beat in coordinated rhythms.
Ciliates like Paramecium use cilia to swim. The third movement style employs pseudopodia, or 'false feet.' This involves the extension of the cell membrane and cytoplasm to move the cell forward. An example is the amoeba that extends and retracts pseudopods to crawl along surfaces. Although not all protozoa move, such as the non-motile sporozoans, these three mechanisms represent the primary types of locomotion for motile protozoans.