Final answer:
The statement highlights that while sex is a biological aspect of humans, it is society that shapes the moral and social context for sexual expression.
Step-by-step explanation:
The statement that 'Sex is a part of our nature, but society determines the social and moral bounds of expression' underscores the complexity of human sexuality beyond mere biological imperatives. Sociologists distinguish sex from gender to understand the biological aspects separately from the cultural and social constructs.
In modern society, this differentiation is crucial as it sheds light on issues of gender inequality, sexual orientation, and identity. Similarly, what is considered 'normal' sexual behavior is contingent upon a society's norms, values, morals, and laws, which are influenced by entities such as family, education, media, religion, and peers.
Anthropologists and sociologists also emphasize the diversity of gender and sexuality across cultures, exploring both the biological underpinnings and the rich tapestry of cultural interpretations and practices. Additionally, the discussion about the naturalness of same-sex behavior in mammals, including humans, points to the recognition of a spectrum.