The education sector is divided into Formal education, Education infrastructure, and Education technology subsectors. It includes education institutions that are profit-seeking and generate revenue from student fees, as well as creators, providers, and distributors of education infrastructure and education technology. At the primary and secondary levels, this includes mostly education management organizations (EMOs) and some businesses. At the tertiary (or higher) level, services are delivered on a full-time, part-time, distance-learning, and occasional basis across establishments such as junior colleges, business and secretarial schools, colleges, universities, and professional schools including medical, pharmaceutical, and veterinary programs. An increasing number of students in for-profit universities take courses online.