A comprehensive 78-slide PPT product that covers all major topics in a middle school / lower high school unit on the reproductive system. Topics include: human life cycle, puberty, primary and secondary sexual characteristics, sperm and egg, reproductive organs, oogenesis, spermatogenesis, menstrual cycle, menstruation, sexual intercourse, fertilization, pregnancy, fetal development, birth process, and twins.NOTE: Introductory & Advanced Topics Included in PPTAlthough I have made this produc