The Amoebae move through amoeboid
movements, which are small projections and invaginations
of their plasma membrane which are the pseudopods that alter the
external shape of the cell, making it move along surfaces.
The outer face of the plasma membrane of
paramecia is covered by cilia that flap around,helping the
cell to move.
Trichomonas are flagellated protozoa, meaning
that they have relatively long filaments outside the cell that
vibrate and make it possible for them to swim in fluid
environments.