: A database for homework solutions that includes the Mashchenko/Borisov textbook and workbook. Typical Topics Covered in 9th Grade Biology

: Offers solutions for various editions of the Borisov and Mashchenko workbook.

Students using this workbook will encounter several core units:

Studying tissues, organs, and the systems they form (nervous, circulatory, respiratory).

Online platforms offer digital versions of these "reshebniks," allowing students to check their work by page number or exercise: