The Proterozoic era is approximately 200 ml of years long. The period is characterized by the appearance of ozone. From vegetation, these are single and multicellular algae, lower fungi. The fauna was richer: single-celled flagellates, sponges, jellyfish dominated, worms, mollusks and the first chordates appeared.
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.