How do sex hormones work in human body?
Sex hormones are responsible for the dvelopment of secondary sexual characters. The male sex hormone testosterone is secreted by testes and it causes growth of moustaches and beard. The female hormone estrogen causes the development of breasts and mammary glands.
What is menstruation?
How does water effect the production of thyroxine in frogs?
How does pituitary gland initiate the puberty in humans?
What causes the changes in human body during puberty?
