Well, after a female sends out a larvae it becomes a polyp. BTW that's pretty important. And after some time it becomes a medusa, AKA a jellyfish or what you are used to seeing. I hope this helped. X)
no if you think you weigh to much do more exercise or go on a diet you dont have to go and starve yourself ur right u dont have to become anorexic models work out im sure not all of them are like...