what are secondary sexual characters? what regulates their developments?
divdabba:
this is a complete ques..................-_-
Answers
Answered by
2
Вторичните полови белези са чертите, които отличават двата пола на един биологичен вид, но не са част от половата система. Като понятие се противопоставят на първичните полови белези - половите органи.
now in English
Secondary sex characteristics are features that appear during puberty in humans, and at sexual maturity in other animals. These are particularly evident in the sexually dimorphic phenotypic traits that distinguish the sexes of a species, but unlike the sex organs, are not directly part of the reproductive system. They are believed to be the product of sexual selection for traits which display fitness, giving an individual an advantage over its rivals in courtship and aggressive interactions. They are distinguished from the primary sex characteristics, the sex organs, which are directly necessary for sexual reproduction to occur.
Secondary sex characteristics include manes of male lions and long feathers of male peacock, the tusks of male narwhals, enlarged proboscises in male elephant seals and proboscis monkeys, the bright facial and rump coloration of male mandrills, and horns in many goats and antelopes, and these are believed to be produced by a positive feedback loop known as the Fisherian runaway produced by the secondary characteristic in one sex and the desire for that characteristic in the other sex. Male birds and fish of many species have brighter coloration or other external ornaments. Differences in size between sexes are also considered secondary sexual characteristics.
In humans, visible secondary sex characteristics include pubic hair, enlarged breasts and widened hips of females, and facial hair and Adam's apple on males.
now in English
Secondary sex characteristics are features that appear during puberty in humans, and at sexual maturity in other animals. These are particularly evident in the sexually dimorphic phenotypic traits that distinguish the sexes of a species, but unlike the sex organs, are not directly part of the reproductive system. They are believed to be the product of sexual selection for traits which display fitness, giving an individual an advantage over its rivals in courtship and aggressive interactions. They are distinguished from the primary sex characteristics, the sex organs, which are directly necessary for sexual reproduction to occur.
Secondary sex characteristics include manes of male lions and long feathers of male peacock, the tusks of male narwhals, enlarged proboscises in male elephant seals and proboscis monkeys, the bright facial and rump coloration of male mandrills, and horns in many goats and antelopes, and these are believed to be produced by a positive feedback loop known as the Fisherian runaway produced by the secondary characteristic in one sex and the desire for that characteristic in the other sex. Male birds and fish of many species have brighter coloration or other external ornaments. Differences in size between sexes are also considered secondary sexual characteristics.
In humans, visible secondary sex characteristics include pubic hair, enlarged breasts and widened hips of females, and facial hair and Adam's apple on males.
Answered by
1
Secondary sexual characters are those features that help in distinguishing the male and female body from each other. These are physical mental or behavioural characteristics that appear in humans at the time of puberty.
In males they r controlled by the male sex hormone testosterone secreted by testes and in the case of females they r controlled by estrogen which is secreted by ovaries.
Hope it helps!!!
Plz mark it as the brainliest
In males they r controlled by the male sex hormone testosterone secreted by testes and in the case of females they r controlled by estrogen which is secreted by ovaries.
Hope it helps!!!
Plz mark it as the brainliest
Similar questions