What are the signs of a more complex structure of the ciliate shoe in comparison with other protozoa?

One of the differences is that she has a memory, albeit a short-term one. She is able to remember from eight minutes to one and a half hours. She also has pulsating vacuoles. It is worth knowing that slipper ciliates are unicellular organisms. It is worth knowing that these creatures can only be found in fresh water bodies. They were named so because in their shape they very much resemble the sole of a shoe.