TY JOUR TI An integrative approach to the application of health-saving technologies in the in-depth study of biology for 9th-grade students in a comprehensive school: methodological solutions in the context of the Federal State Educational Standard KW health-preserving technologies KW integrative approach KW healthy lifestyle KW methodology JO Journal of Applied Research AU Dzhabrailov, J.G. AU Efimova, T.M. PY 2026 IS 0 PB ITBO University