Why can determining gender from a skull be difficult?

This organ actually shrink in size as we get older? Does safecare asthma work? Does abdominal obesity cause more severe abdominal injuries in a Motor Vehicle Accident? What is diabetic nephropathy? Can concussion cause loss of consciousness? How does hypoventilation affect respiratory rate? Is there a chance of going into labor early if you were overdue with previous pregnancies? Is it possible to get pneumonia just from being in the cold and wet too long? What nursing diagnosis for post term infant? What ks the ability of the heart lungs and blood vessels to transport oxygen to muscle cells? What congenital abnormalities of the urinary system is only found in male infants? Who is the person of contact to receive a donation? What are facts about strep throat? What do you call a person who doesn't or can't show emotions? Does a hard bed cause hip problems? What is the fear of belts called? Is it possible to puke your liver? What are the different ways of getting fit? Which part of the brain is the executive suite for all brain activity? Can the anti seizure medication Topamax cause kidney stones?