The way in which protozoans moves allows biologists to place protozoans into smaller groups. Some protozoans move by means of one or more flagella. These protozoans are called zooflagellates. Trypansosoma a human parasite and Trichonympha , a protozoan that lives in the gut of termites are examples of zooflagellates. These are called the sarcodines, and Amoeba is an example of this group.
Ciliates move by means of cilia.
Paramecium is an example of this group. Some protozoans have no means of movement. Plasmodium , a sporozoan, causes malaria. Protozoans are able to respond to the environment but is not yet known how they do so. Protozoans move toward moderate light and temperature and food.