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The secondary sex characteristics differ in that they will not be identifiable at birth, they will develop as the subject becomes sexually mature. In mammals, these characteristics include breasts in females and greater muscle mass in males. Secondary sexual characteristics have an evolutionary purpose: increase the chance of breeding. [7]
secondary sex character, physical feature related to the sex of an organism that emerges during puberty, or the phase of sexual maturity. Examples of secondary sex characters in humans include the development of breasts in females and pigmented facial hair in males.
Secondary sexual characteristics. Secondary characteristics are the result of hormonal changes in the body during puberty. These changes are faster in girls than in boys. Some changes are common in both boys and girls while others are specific to each gender. This is due to the different hormones released by them. Growth of pubic hair, facial ...
Secondary sexual characters are those characters that are governed by the hormones released at the time of puberty and usually are around two years earlier in females than in men. The secondary sexual characteristics in males are : Hair growth on the face in the form of a beard and mustache; The growth of his testicles; Heavier musculature ...
Secondary sexual characters in females are seen due to the secretion of higher levels of oestrogen. These are Development of mammary glands enlargement of breasts and erection of nipples.
Secondary sexual characteristics in males include the development of facial and body hair, growth of genitalia, prostate and scrotum, whereas, in females, these characteristics include the enlargement of breasts, the development of pubic and under armpit hair, and menstrual cycle, etc.
Some secondary sex traits that are more common in women are breasts, wider hips, and thicker hair on their head. Some male secondary sex traits are facial and chest hair and deeper voices. Not every person has these traits.
The initiation of spermatogenesis begins in boys, and girls begin ovulating and menstruating. Increases in sex steroid hormones also lead to the development of secondary sex characteristics such as breast development in girls and facial hair and larynx growth in boys.
Secondary sex characteristics are physical traits that emerge during puberty but are not directly involved in reproduction. They distinguish the sexes from each other but do not include the reproductive organs themselves.
Development of the reproductive organs and secondary sex characteristics; Normal variations. Sex dimorphism; Physical and behavioral interaction; Larger size and earlier maturation