The field of ecosystems may concentrate on the inter-dependency of organisms in a localized environment and the relationship between organisms and their surroundings. Ecological studies can range from learning about specific species populations to whole ecosystems and global phenomena.

A certificate is a short scholastic program that helps provide students with the education and training they need to qualify for promotions at work or to supplement their existing academic records. These programs are usually completed in less than a year.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.