Protists are a separate group of organisms, which is difficult to clearly define to what species they can be attributed. Evolution does not stand still, and each class has its own representatives who are higher than them in organization, but do not have all the signs to carry them to the next level. Such a transitional link. Common to all protists is that one cell is an integral organism and it always has a nucleus. Protists are conventionally divided into protozoa, algae, and mushroom-like organisms. As a rule, these are unicellular organisms, but they also form colonies and have a multicellular structure. The main representatives: brown, green, diatom algae, euglena green, mold.
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.