Sexual characteristics that develop during puberty and differentiate between the sexes but are not directly involved inreproduction, such as male facial hair and female breast development, are called:

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Secondary sex characteristics are physical characteristics that differentiate between males and females and develop during puberty. They are not directly involved in reproduction but are important for sexual attraction and identity. Examples include breast development in females and facial hair growth in males. Epigenetic sex characteristics refer to changes in gene expression that result in differences between males and females, while primary sex characteristics involve the reproductive organs themselves. Gender identity characteristics refer to the psychological sense of being male, female, or non-binary.

Sexual Characteristics That Develop During Puberty and Differentiate Between the Sexes