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 Developmental biology â The study of the processes by which an organism changes from a single cell into a mature, multicellular individual.  Epigenetics (pronunciation) â The study of heritable changes in phenotype caused by mechanisms other than the alteration of nucleotide sequences.
Life Sciences Life sciences Specializations and courses explore properties of organisms and living ecosystems, with subtopics including biology, nutrition, zoology, and healthcare. Courses in this field will improve your understanding of animal and plant life, and your ability to analyze how complex systems interact with each other and respond to change.