Answer:
More kids are not participating due to financial reasons than health issues.
Because most STD (STI)s are bloodborne diseases, and the sexual contact is close enough to blood contact, or are on the genitals.
Labor nurses and delivery nurses goes into a woman vagina and pulls out the baby. They help the woman give birth.
6. Meiosis
10. Ovulation {?}
12. Cell
13. Penis
Hope that helped