Human health is affected by both inheritance and environment. For example, the common flu can be avoided by good hygiene. Jaa Sulje Bbakin/Shutterstock.com Tämän kuvan tekstivastine: (tyhjä tekstivastine) shutterstock_707687833.shutterstock_707687833_Bbakin_ihmisia_joulukuusi_levea.jpg 362.2 kt
