Pd
...to do certain things. Everyone was born with hormones, and at puberty they begin to make changes to the body. Oestrogen is a hormone that females have. It is active during reproductive life. It is secreted from the ovaries and targets the sex organs and the whole body. Oestrogen is a second sex characteristic and helps with the development of breasts, body shape and sex organ development. Progesterone is a hormone that females have. It is active during reproductive life. It is secreted from the ovaries and targets the sex organs and the whole body. It stimulates the lining of the uterus. Testosterone is a hormone that males have. It is active during reproductive life. It is secreted from the testes. It targets the sex organs and the whole body Testosterone is a second sex characteristic which assists in the development and maturation of sex organs and body shape. The Growth Hormone is a hormone that both males and females have. It is most active from conception to birth and before and during puberty. It is secreted from the pituitary glands. It targets all parts of the body except for t...