An e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading e-books and digital periodicals. An e-reader is similar in form, but more limited in purpose than a tablet.-book reading is increasing in the US; by 2014 28% of adults had read an e-book, compared to 23% in 2013.
1 Ecology (pronunciation) â The study of the interaction of organisms with each other and with their environment.  Geobiology (pronunciation) â A science that combines geology and biology to study the interactions of organisms with their environment.
Within that vast space, the oceans are filled with a huge range of microscopic organisms, animals, and plant life. If you major in marine biology, youâll learn how this life thrives in the oceans. Youâll study such subjects as the chemical makeup of water, the oceanâs geology, marine mammals, fish, plants, and biological habitats. Marine biology majors study the creatures that live in the oceans.