Textbook. 2nd Edition . , stereotype. - M. : Drofa, 2015. 304 s. : il. — (Vertical). The textbook complies with the Federal State Educational Standard of Basic General Education, recommended by the Ministry of Education and Science of the Russian Federation and included in the Federal List of Textbooks. The textbook is addressed to students of the 9th grade and is included in the educational-methodical complex "Living organism", built on a linear principle. A large number of colorful illustrations, a variety of questions and tasks, additional information and interesting facts, as well as the possibility of parallel work with an electronic application contribute to the effective assimilation of educational material .