Critical care nurses generally work in places such as intensive care units or burn centers. They provide assistance to patients with life-threatening illnesses or conditions such as surgery or serious infections. Students interested in critical care might take courses such as physiology, chemistry, and microbiology.

Europe is, by convention, one of the world's seven continents. Comprising the western most point of Eurasia, Europe is usually divided from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting the Black and Aegean Seas.

Courses are individually offered classes that afford higher education opportunities in various areas of study. By taking a series of classes focused in one category, students might pursue a certificate or degree in their field of interest.

Online or distance learning refers to the use of electronic media and information and communication technologies (ICT) in education. With online learning, one can access education at any time and from any location with an available internet connection.