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.
Terms like âbiologyâ and âzoologyâ are general terms that refer to the scientific study of living organisms and their environments. There are many subfields of biology that study a specific section of the living world or a specific group of organisms. Most biologists develop expertise in one of these subfields.iologists study living organisms and research how they interact and relate to the environment. Colleges and universities, government agencies, pharmaceutical companies, conservation groups, science museums, and many other sites hire biologists.