Mononucleosis, commonly called mono, is an illness caused by the Epstein-Barr virus. Although it's rarely serious, mono can cause bothersome symptoms that last several weeks.
Complex systems. Complex systems present problems both in mathematical modelling and philosophical foundations. The study of complex systems is an approach to science that investigates how relationships between parts give rise to the collective behaviors of a system and how the system interacts and forms relationships with its environment.
Learn about Bronfenbrenner's ecological systems theory in this lesson and explore the five levels of the environment that can influence human development.cological systems theory provides one approach to answering this question. The ecological systems theory was developed by Urie Bronfenbrenner. Bronfenbrenner believed that a person's development was affected by everything in their surrounding environment.