**The secretion of which hormone leads to physical changes in the body when you are 10-12 years of age?** A) Oestrogen from testes and testosterone from ovar. B) Estrogen from adrenal gland and testosterone from pituitary gland. C) Testosterone from testes and estrogen from ovary. D) Testosterone from thyroid gland and estrogen from pituitary gland. Click Link for Answer