How are protozoans classified?

Plz answer it ASAP!!

All protozoal species are assigned to the kingdom Protista in the Whittaker

Explanation:

 The protozoa are then placed into various groups primarily on the basis of how they move. The groups are called phyla

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands