Final answer:
The percentage of societies with homosexuality varies, but LGBTQ representation has existed throughout history. Between 3% and 10% of adults identify as gay or lesbian. Legal recognition of same-sex couples varies by region.
Step-by-step explanation:
The percentage of societies that have homosexuality is difficult to determine due to cultural variations and historical attitudes towards homosexuality. However, LGBTQ representation has existed in various societies throughout history, though it may not always have been recognized or accepted. In terms of same-sex relationships, a study found that between 3% and 10% of the adult population identifies as gay or lesbian. Legal recognition of same-sex couples varies by country and state, with only a limited number of countries allowing same-sex marriage.