[Solved] If a new essential nutrient were discovered, it would be a A) macronutrient. B) micronutrient. C) rare metal. D) small organism. E) cytochrome. Stable Relationship: A relationship characterized by consistent affection, support, mutual respect, and ongoing commitment between partners. Sex: A biologically based categorization of living organisms, typically as male or female, based on reproductive organs and functions. Fellatio: null Anal Eroticism: Sexual activities involving the anus.