Progesterone.
Estrogen
Girls start developing breasts with the onset of puberty usually between the ages of 12 and 14.
Adrenalin.
Primary characteristics involve the organs for reproduction. Males have testicles, females uterus. Secondary characteristics involve traits characterized by hormonal changes such as the differences due to puberty. Examples include breasts, facial hair, the growth of pubic hair and underarm hair.
the answer would be ovaries of course. your welcome! :)
Females= Estrogen and in males= testosterone
Testosterone in males and estrogens in females
Ovaries
OVARY
Ovaries
The primary sex characteristics are the genitalia. The secondary sex characteristics are those typical of males or females. Breasts, body shape, Adam's apple, voice pitch, hair growth, etc. are secondary sex characteristics.
In humans, visible secondary sex characteristics include enlarged breasts of females and facial hair and adam's apple on males.
They are sometimes as interested in other males as in females....
The main androgen is Testosterone with increasing levels that begins Puberty and the Secondary Sexual Characteristics in males. Testosterone is produced in the testes. It encourages growth and maturation. Also important to mention is the Follicle-stimulating hormone (FSH) which enhances spermatogenesis. And, Dihydrotestosterone (DHT) which similarly to testosterone, is a male reproductive hormone that helps the external genitalia to grow and become fertile.
Adrenal
estrogen= female testosterome=male
Ovaries
No, growth hormone is what determines your sizeestrogen is more so found in females, an increase in a man may cause him to have secondary sex characteristics of a female, like larger breasts.