[Solved] What factor causes closure of the foramen ovale? A) increased blood pressure in the left atrium B) increased blood pressure in the right atrium C) increased PCO₂ in the arterial blood D) increased PO₂ in the arterial blood Erotic Plasticity: The degree to which an individual's sex drive and sexual preferences can be shaped by cultural, social, and situational factors. Heterosexual: A sexual orientation characterized by a romantic or sexual attraction towards individuals of the opposite sex. Homosexual: A term describing individuals who are emotionally, romantically, or sexually attracted to members of the same sex or gender. Sex Drive: The biological and emotional urge or desire for sexual activity.