This document discusses sexuality, sex, and gender in the Philippines. It notes that while sex is still a taboo topic, society is becoming more tolerant of different sexualities. The Philippines has traditional gender roles, with women expected to take on domestic tasks and men as breadwinners. The document also discusses human reproductive anatomy and the roles and characteristics of the male and female reproductive systems. It defines primary and secondary sex characteristics that develop during puberty and notes the skeletal system provides height differences between sexes.