Examlex
Which one of the following best explains why humans must constantly breathe in oxygen in order to stay alive?
Heterosexual
A sexual orientation characterized by romantic or sexual attraction between people of the opposite sex.
Homosexual
Pertaining to or characterized by a sexual attraction towards members of one's own sex.
Binary Classifications
A system that divides objects, concepts, or people into two distinct and mutually exclusive groups.
Gender Norms
Socially constructed roles, behaviors, activities, and attributes that a given society considers appropriate for men and women.
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