|A ____ is anything that promotes the formation of cancer.
|The normal human body ____ is about 98° F.
|The aorta is the largest ____ leading away from the heart.
|Blood cells are made in the ____ (spongy tissue) of large bones.
|The black circular opening of the eye is the ____.
|Your ____ is located just left of the center of your chest.
|The ability of your body to resist and fight infection is ____.
|The tube that carries urine out from the bladder is the ____.