| A | B |
| abstinence | avoiding sexual activity |
| hormones | chemicals in the body that cause changes |
| paternity | legal identification of a male as the father of a child |
| peer pressure | the influence of people one's own age |
| sexuality | a person's view of himself or herself as a male or female |
| STD's | an illness spread from one person to another by sexual contact |
| closed adoption | a type of adoption in which the birth parents do not know the names of the adoptive parents |
| miscarriage | the unexpected death of a developing baby before 20 weeks of the pregnancy |
| open adoption | a type of adoption in which the birth parent are told about the adoptive parents and may even get to meet them |