Marine biology concerns the study of marine life in the ocean as well as in saltwater environments such as wetlands, estuaries, creeks, bays, and inlets. Marine biologists study plants, animals, and the water itself in order to better understand the relationship between organisms and their environment.

Croatia is a country where 40% of its citizens ranging between 18 and 35 years have attained higher learning education. The country has improved student’s life in these universities with a subsided living standard in these universities especially for both local and even international students.