[Solved] Fertilization normally occurs within which structure? A) ovary B) fallopian tube C) ovarian ligament D) body of uterus E) vagina Erotic Plasticity: The degree to which an individual's sex drive and sexual preferences can be influenced by cultural, social, and situational factors. Sexual Dysfunctions: Disorders that prevent an individual from experiencing satisfaction from sexual activity. Paraphilias: Atypical sexual interests towards objects, situations, or individuals that are not part of normative stimulation. Kin Selection Theory: A theory in evolutionary biology that suggests individuals are more likely to sacrifice themselves or help relatives as a means of ensuring their genes are passed on.