The ancient protozoa had a primitive structure of the organism, which made it difficult for their free movement in space. In the process of evolution, protozoa developed organelles of movement – flagella and cilia, for example, in green euglena. In some unicellular organisms, supporting fibrils have formed, as, for example, in Trichomonas.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.