Choose the most suitable response:
Answer variants:
hygiene
testosterone
growth hormone
puberty
1. The hormone responsible for development of secondary sexual characters in boys is (stotrngee). -  
 
2. The growth of hair in armpits and other parts of the body during adolescence is a sign of (yprbtue) -
 
3. During adolescence, bones and muscles grow rapidly due to the action of (htgwro enohrmo). -
 
4.Adolescents must maintain good personal (neighye) to prevent infections.