From what I know the <u>cranium</u> protects the organ called the <u>brain</u>. It is made up of 8 different bones that supports your head & protects your brain from injury. Some of the other bones protect the sides of the <u>brain</u> & supports the sides of your face. The <u>cranium</u> is basically a cozy little home for your <u>brain</u>.
Explanation: XX because she is female. Since she is not color blind one of the pair has to be XC. Since she is a carrier of color blindness she has to have the recessive gene as well, so the other has to be Xc.