All have eukaryotic cells. Some are animal-like and are called protozoa.
Some algae are unicellular and are therefore found among the protists.
We will examine the protozoans because pathogenic species are found among them. Click here to see cysts of Giardia lamblia. Asexual reproduction by fission or budding dominates protozoan life cycles. Taxonomy Are subdivided based on their mode of locomotion. The amoebas These protozoans move by extending usually blunt lobelike projections of the cytoplasm called pseudopods.