Why can't see orange?

Is it safe to get the flu vaccine every year? Can you get a skin rash from taking lamisil and tanning in a tanning bed? What was the authors purpose in both Patrick henrys speech and thomas paines common sense? How many times does an 53-year-old's heart beat per minute? What happens if you don't clean your CPAP mask? What is environment of an adult tapeworm? What is a soficus? Can head lice be transferred by sharing football helmet? Where were the first bifocal glasses invented when and how were they changed since the first pair? How did REM start? What are the karyotypes of diabetes? What do you call the hole at the front base of the neck? What is a still-born baby? What are the do's and don't's when you have ulcer? What happens to a muscle contraction if there is an excess amount of either Ca2 plus or ATP present during the contraction? Can oranges break a spine? How do you teach a 2-year old daughter to pee? If a woman has had a hysterectomy is there any way that she carry a child if she used invetro? What hypothalamic nucleus controls muscle in blood vessels? How pluse rate change at rest?