1. Adolescence
2. bond
3. conflict
4. instinct
5. interaction
6. resemblance
7. rivalry
8. temperament
9. ties
10. upbringing
11. close-knit
12. maternal and parental
13. rewarding
14. stable
15. adopt
16. break down
17. endure
18. establish
19. inherit
20. interact
21. nurture
22. play a role
23. relate
24. relation
25. relationship