What is menstruation?
Monthly bleeding in women is called menstruation, If the egg is not fertilized, the released egg and the thick linin of uterus is shed off along with the blood vessels. It is discharged from the body as blood.
How does pituitary gland initiate the puberty in humans?
How do sex hormones work in human body?
What causes the changes in human body during puberty?
How does water effect the production of thyroxine in frogs?
